Tuesday, 9 March 2021

FLUTTER 2- A Leap into the Future

FLUTTER 2- A Leap into the Future

The major announcement of the Flutter 2 launch was made on March 3rd, 2021, by the Google Developers. It was significant in the sense that the upgrades were many over the previous version.

It enabled the developers to work almost on any platform and, in the process, create and build apps that are more fast, portable, and beautiful. The advantage was that it was a common codebase, and apps can be shifted without any issues and made workable on the top five operating systems.

The operating systems were:

  • Windows
  • Android
  • IOS
  • Linux
  • MacOS.

You can use it to target top browsers such as Edge, Chrome, Firefox, and Safari. As far as portability was concerned, it could easily be embedded in Television, Cars, Smart Home Appliances, thus making its presence felt and an experience in the world of computers.  



It was to introduce a new mindset, especially the Developers' perspective. The 360-degree change Flutter 2 brings around is the experience that has to be created and not the platform itself. In this process, the design is found at the forefront, and branding also occupies an important position.

The advantages of Flutter 2 

  • It is the fastest in compiling the source code to machine codes.
  • And It enables you to make changes with the application still running.
  • It permits you to see the results of such changes in real-time.
  • It is open-ended, thus allowing for many contributors who can enhance the core framework.
  • Flutter is not confined to a mobile framework but also available on a portable one. This helps your apps to run on various platforms with no changes.
  • There are PWA's which Integrate well with the user (like Twitter), and their quality stands enhanced. These enhancements include offline support, installation, and the tailored UX.
  • The web support provided by Flutter to complex standalone apps makes it easy to reach various users on an unrestricted number of devices.

Flutter & the Web:

There is no difference in his Flutter performance on the web compared to the mobile. With the additional flexibility of Flutter and its combination with the web platform's power-building new applications for Android and iOS, the browser is also of the same codebase.

It brings with it many new and exciting additions. They are :

  • Web:

It has helped to leverage web platforms' strength and has thus created a base for interactions between web applications.

  • Sound Null Safety:

It is essential to distinguish between nullable and non - nullable types. Dart language has an add-on through Sound Null Safety. Apps generally crash as there are null errors, but with Sound Null Safety, this is preventable.

Pros and Cons:

Pros:

  • Code writing is faster
  • Testing is lesser
  • Apps work faster
  • Similar code / single code for two platforms
  • User lovable designs.

Cons:

  • Non- availability of certain functionalities
  • As on date, Flutter is not supported by a few CI platforms.

Conclusion:

The advantages of Flutter 2 outweigh the disadvantages. It presents an excellent opportunity for high performance and is capable of satisfying your custom requirements.

Tuesday, 16 February 2021

Is The Google FI VPN The Best?

Google FI VPN

Google has come out with their own ' VPN' (Virtual Private Network) on all Fi phones to eliminate this. Let us discuss is the Google FI VPN is best or not?

Our dependency on the mobile phone has exceeded all limits, and we are highly dependent on them for many important things. In this process, we are unaware of what repercussions are expected to happen as we pass on vital information.

They may include credit card numbers, passwords, etc., which hackers can conveniently pick up in transit and use for their gains.

What is Google Fi VPN?

Using Google Fi VPN, there are no changes that would affect the process of browsing, streaming, and downloading, with the connection being encrypted and private. In other words, you are given a free run despite the fact you are using insecure networks.

The most significant advantage is that none can locate your IP address, and hackers will have no clue that you even exist.

Found below are improvement made to this process of Google Fi VPN after its introduction:

  • It enables double-layer protection against your Phone number. 
  • Provides complete privacy and more security. 
  • Personal information is completely protected. 
  • Performance improvement but may slow down the existing speed. 

The new Fi VPN does promise this, but are there doubts regarding these claims?

1. Anonymity and protection:

The argument of using the Google Fi VPN is to:

  • Protect ourselves from hackers 
  • Preventing ISP's from collecting all our data and selling to organizations who will benefit from them. 

This is a valid argument provided you want anonymity from your ISP and is justified. But one should never forget that you cannot stay hidden from Google itself.

They would track every movement of yours and bomb you with advertisements in all the products or sites you show interest in!

2. User identifiers and Google's claim:

Google states that any data browsed cannot be traced back to the user. Such a disclaimer does cast doubts because:

  • All your activity is passing through Google. 
  • Google knows where the activity has been initiated 
  • There is no assurance from them that they would not use the information to their advantage 
  • They have the ' know-how' on how to collect your data. 
  • The question then is how much you trust Google. 

3. Speed and performance compromised:

Various VPNs state they aim to provide complete security but not sacrifice the speed or performance you have experienced before. Google, on the other hand, through their Fi VPN, says:

  • All the data will flow through their one channel 
  • There would be increased mobile data which is not less than 10 % 
  • Due to this, the users would' experience slight slowdowns.' 
This is actually in direct contrast to the statement made by other VPNs!

4. Ability to Bypass:

Fi VPN from Google is expected to do wonders on its ability to bypass all restrictions. However, it remains non-committal on bypassing geo-restrictions and blockade from many countries.

The fact is that the Fi VPN cannot change the country of origin, thus allowing the region to block you. The traditional VPN does not suffer from this issue.

Monday, 18 January 2021

Samsung Galaxy S21- Full Phone Specifications

Samsung Galaxy S21
Usually, Samsung increases the model's price while launching a new one. But this time, it seems to happen the opposite. Instead of increasing the price, the brand has reduced the price of Samsung Galaxy S21 due to the economic fallout during Covid-19. The price of this premium S21 model starts at $799 ( AU$1249) that is cheaper compared to the S20 model.

Samsung Galaxy S21 Design

Dimensions: The height of the phone is 151.7 mm, whereas 71.2 mm is its width. Besides, the thickness of the Samsung S21  

Weight: It weighs only 171 grams.  

Colors: This samsung phone comes in Phantom Gray, Phantom Violet, and Phantom White color. What makes this model exceptional is its Waterproof ability. It can resist water for up to half an hour at a 1.5-meter depth.  

Display: The screen size of this waterproof and dustproof model is 6.2 inches, i.e., 15.75 cm. Besides, it comes with a screen resolution power of 1080 x 2400 pixels. 

The aspect ratio is 20:9. It features a Bezel-less and a punch-hole display. The density of pixel is 424 PPI, whereas the display type is Dynamic AMOLED. 

It is equipped with super durable Corning Gorilla glass. 

The refresh rate is 120 Hz. It comes with a Capacitive Touchscreen. In this case, 85.92 % is the multi-touch ratio of screen to body.  

Performance: This model comes with an Octa-core processor— 2.9 GHz of Single core, Cortex X1 + 2.8 GHz of Tri core, Cortex A78 + 2.2 GHz, Quad-core, and Cortex A55. 

The RAM of the phone is 8 GB.  

Storage: The phone has 128 GB of internal memory. However, it supports USB OTG.

Samsung Galaxy S21 Specifications:

 

Camera

Rear Camera: It comes with three rear cameras set-up. The first one is 12 mp primary wide-angle camera that has a focal length of 26 mm, whereas 1.7" is the sensor size of this model. Its pixel size is 1.8µm. The second one is a 64 MP f/2.0 Telephoto Camera. 

In this case, the focal length is 28 mm, and the pixel size is 0.8 µm. The sensor size of this camera is 1.7". This Ultra-Wide Angle Camera has 12 MP f/2.2. Its focal length is 13 mm, whereas the sensor size is 2.55". 

On the other hand, the pixel size is 1.4 µm. This model features Phase Detection and the Dual Pixel autofocus. 

Besides, the Physical Aperture is F1.8. There exist a LED flash and an Optical Image Stabilisation capability. This phone has 4000 x 3000 Pixels resolution power. It includes exposure compensation and ISO control. 

The product comes with continuous shooting mode as well as High Dynamic Range mode. You can get features like Digital Zoom, Auto Flash, Face detection, Touch to focus, etc., in the model. 

It allows you to record videos in different styles— 7680x4320, 3840x2160, 1920x1080, and 1280x720. 

 Front Camera: On the front side of the model, you will get a single camera set-up. This 10 MP Wide-Angle Primary Camera comes with a focal length of 26 mm, a pixel size of 1.22 µm, and a 3.2" sensor size. 

It features only Phase Detection autofocus. The product includes F2.2 Physical Aperture and 3840x2160 Video Recording capacity.

Battery:

This Galaxy S21 comes with a Li-ion battery of 4000 mAh battery capacity. The model doesn't allow you to replace the battery. 

It features wireless charging and supports USB Type-C. The 25 W fast charging makes the product exceptional.  

Network & Connectivity: The phone supports nano-SIM in both sim plots. It supports a 5G network as well as the voLTE network. 

 SIM 1: The SIM 1 is compatible with TD-LTE 2300(band 40) & FD-LTE 1800(band 3) 4G bands. On the other hand, it supports various 3G bands — UMTS 1900 / 2100 / 850 / 900. 

The MHz2G Bands you can use here are GSM 1800 / 1900 / 850 / 900 MHz. It offers both GPRS and EDGE benefits.  

SIM 2: The SIM 2 slot supports TD-LTE 2300(band 40) and FD-LTE 1800(band 3) 4G bands and UMTS 1900 / 2100 / 850 / 900 3G bands. 

The MHz2G Bands that are compatible with the SIM 2 slot are GSM 1800 / 1900 / 850 / 900 MHz. 

You will get GPRS and EDGE available in this case also. It supports Wi-Fi 802.11. Besides, the model supports mobile hotspot, NFC, and GPS. The Bluetooth version is v5.1. 

It comes with A-GPS and GLONASS. The USB is compatible with USB charging and mass storage devices.

Other Features:

The On-screen fingerprint sensor makes the model very unique. The type of sensor is ultrasonic. The other sensors available in the model are as follows:- Light sensor, Accelerometer, Proximity sensor, Barometer, Compass, and Gyroscope.  

Accessories: S pen: The brand is offering this S pen only with the s21 ultra model.

Frequently Asked Questions:

  • How many cameras does Galaxy S21 Ultra 5G have?

The Samsung Galaxy S21 Ultra 5G comes with four rear cameras and a 40MP selfie camera. The rear cameras are — a 12MP Ultra Wide Camera, a 108MP Wide-angle Camera, and two 10MP Telephoto Cameras.
  • Does Galaxy S21 Ultra 5G have a 120Hz display?
Yes, this Samsung model has a Super Smooth 120Hz display. The refresh rate of the display of this phone is between 10-120 Hz. However, it depends on the content that you are watching.
  • How big is Galaxy S21 Ultra 5G?

The screen size of the Galaxy S21 Ultra 5G is 6.8-inch. It comes in dimensions at 75.6 x 165.1 x 8.9 mm. The model weighs only 229 g.
  • Does Galaxy S21 Ultra 5G support eSIM?

Yes, it supports both eSIM and Hybrid Dual SIM.
  • What colors does Galaxy S21 Ultra 5G come in?

The Samsung Galaxy S21 Ultra 5G comes in Phantom colors— Phantom Titanium, Phantom Navy, and the Phantom Brown.
  • How many cameras do Galaxy S21 5G and S21+ 5G have?

Both Galaxy S21 5G and S21+ 5G smartphones come with three rear cameras and a front camera of 10 MP. The rear cameras are as follows:-
  • 64 MP Telephoto Camera
  • 12 MP Wide-angle Camera, and
  • 12 MP Ultra Wide Camera.
  • Do Galaxy S21 5G and S21+ 5G have a 120Hz display?

Both Samsung Galaxy S21 5G and Samsung S21+ 5G come with smooth 120Hz displays. The refresh rate of the display is from 48Hz to 120Hz. But the refresh rate relies on the content that you are watching.
  • How big are Galaxy S21 5G and S21+ 5G?

The size of the display of the Galaxy S21 5G model is 6.2", i.e., 15.84 cm. It comes in 71.2 x 151.7 x 7.9 mm dimensions, and the weight of the model is 171g. On the other hand, the size of the Galaxy S21+ 5G is 6.7" screen, i.e., 16.95 in cms. 75.6 x 161.5 x 7.8 mm is the dimension of the Galaxy S21+ 5G. The weight of the model is 202g.
  • Do Galaxy S21 5G and S21+ 5G support eSIM?

Yes, eSIM or electronic SIM is compatible with both Galaxy S21 5G and S21+ 5G. You can activate the network plan on your phone with the help of eSIM. Thus, it allows you to switch your data plans. The eSIM enables you to include even overseas phone numbers.
  • What colors are Galaxy S21 5G and S21+ 5G available in?

Both of these come in spectacular colors. The Galaxy S21 5G is available in Phantom Pink, Phantom White, Phantom Gray, and Phantom Violet. On the other hand, you can get the Galaxy S21+ 5G model in three different colors — Phantom Violet, Phantom Silver, and Phantom Black.
  • Is Galaxy S21 5G and S21+ 5G water and dust resistant?

Each of these models comes with Contour Cut Camera housing and Gorilla Glass Victus protection. Besides, these have AL7x10 metal frames that protect the models from water and dust. The IP68 rating of both models makes these smartphones water and dust resistant.
  • Is Galaxy S21 5G and S21+ 5G secure?

Yes, both of these models are secure enough. Each smartphone has Gorilla Glass Victus protection and an AL7x10 metal frame. These models are IP68 waterproof and dustproof also.
  • How much storage comes with Galaxy S21 5G and S21+ 5G?

The Galaxy S21 Ultra model features a RAM having up to 16GB of space. On the other hand, both Galaxy S21+ and Galaxy S21 have a maximum of 8GB. Besides, Galaxy S21 Ultra has a maximum capacity of 512GB storage. But the Galaxy S21+ and Galaxy S21 models have a maximum of 256GB storage.
  • What is Motion Mirror?

It is a filter that is used to recreate the 1980s music videos. With the help of the filter, you can split the image in half vertical motion. And you can reverse the remaining part of the image for creating the reflection.
  • Is Galaxy S21 5G and S21+ 5G compatible with Google Duo?

Yes, Google duo supports both Galaxy S21 5G and S21+ 5G. You can easily connect your google duo video calls to Samsung smart TVs using these phones.

Monday, 2 November 2020

Zerologon Bug – Know the Unknown | Mono-Live

Zerologon Bug

We have recently got warnings from Microsoft about a critical vulnerability about which they told in August. We know it as the "Zerologon bug,'' CVE-2020-1472. Now, it has spread in a wide range. Due to which the attackers can hack the database of a company. And they can also remotely control a company's domain.

The bug has affected Windows 2008 and other new updated versions of windows. According to Microsoft, the attackers take the help of the Netlogon Remote Protocol for setting up a secure channel connection with a domain of a company. CISA, known as Cybersecurity and Infrastructure Security Agency, assumes that it can help the attackers to access a network with a domain controller. Zerologon flaw enables hackers to know about the whole network and all Active Directory identity services connected with them.

Recently, CISA has issued an emergency directive in which they have ordered all federal civilian agencies. The identifier of the bug is CVE-2020-1472. Researchers have found a nasty bug in Windows Server which they gave the name 'Zerologon'.

The Active Directory domain controller code has earned a complete ten rating on the CVSS scale. It stands for Common Vulnerability Scoring System. But the details of the controller can never be revealed. It means that users and I.T. administrators are unable to know how dangerous the problem is.

Importance of the Zerologon Bug for the attackers:

The attackers always have a foothold inside the network using which they can target the specific domain with ease. Now, the attackers get help from the post-compromise exploits also. The exploits have become very valuable to the attackers in recent times. 

When they have got some of the previous data, they can easily hack the domains of any company. As soon as the employees click on any links or attachments in the email, the attackers will hack their domains and steal important data.

Using the Zerologon bug, the hackers can quickly get control of the Active Directory. Moreover, you can get free rein to control it.

How Zerologon Bug works:

The Zerologon exploits uses a string of zeros. The attackers send it via the email of any targeted company. When any employee of that company clicks on it, the attackers using the Netlogon protocol to hack the servers of the company's domain. 

But it depends on various tasks like they allow the users to log in. That's why the Administrators need to be concerned about their installing updates. The network components are susceptible. So, you need to be concerned about the updates always.

It is reported that this bug is the most hazardous one comparing to the previous ones. The worth value of it is a 10/10 CVSSv3 severity score. For Microsoft, patching the bug is not so easy a job. It is scheduled in such a way so that it can be run over in two phases. For the first one, Microsoft will help you to let you know about how to fix the first phase. 

 

Microsoft has done this and made the Netlogon security features mandatory. However, if you want to get a more effective patch, then you need to wait till February. The attack made by the hackers was so quick that it only took nearly three seconds or less than that for hacking the domain of the targeted company.

Take over a domain controller with a number of zeros:

People can get in-depth knowledge about the bug from the team at Secura B.V. that is a Dutch security firm. They have published a technical report from where you can know about the CVE-2020-1472. According to this report, we come to know that the bug is precious for its 10/10 CVSSv3 severity score.

It was the Secura experts who named this bug as Zerologon. According to these professionals, it has taken the benefit of a cryptographic algorithm. The attackers used this algorithm in the Netlogon authentication process. 

They use the bug to follow the Netlogon authentication method. It can hide the identity of any computer with ease on a network. Therefore, it will become easier for them to hide their real identity against the domain controller.

By following the Netlogon authentication process, they can disable security features with ease. With the help of the Netlogon authentication process, one can change the password of a computer on the domain controller's Active Directory. Usually, a database of a computer is connected with a domain and their passwords.

The reason why it is named Zerologon is that the hackers attack the database only by adding zero characters in specific Netlogon authentication parameters.

Take over a corporate network within three seconds:

For the beginners, they must need a foothold inside a network to hack the domain. They can't hack the Windows Servers that are not included in the arena of that specific company's network Or belong to the outside of the company's network. It just takes a few seconds to hack all the databases.

The bug can quickly attack anyone's computer of the targeted company and then spread the malware to all computers.

Patches available; more to come

Nowadays, big companies like Microsoft, need to modify their devices that are connected to corporate networks. Now the Netlogon security features become mandatory for this temporary patch in which process the Zerologon got disabled. It is also vital for all Netlogon authentications.

Recently, it has been decided to reschedule the bug for February 2021. People use this name Zerologon for its broad impact, severity, and benefits for attackers. Secura did not release any proof-of-concept code for a weaponized Zerologon attack. In addition to this, the company has also released a Python script instead of the previous script that you have got earlier.

Protecting devices against Zerologon Bug

Microsoft is trying to fix this bug problem in two-phase. During this time, Microsoft has updated the FAQs in its original documentation. This documentation can help you to identify further clarity. It is because a few users are there who found the documentation very confusing.

That's why Microsoft told its users to find out those devices that make vulnerable connections. For this, they said to their employees to monitor event logs, address non-compliant devices, etc. They also said to enable enforcement mode for managing CVE-2020-1472 in their environment.

Companies use Microsoft Defender for Identity, or Microsoft 365 Defender to detect the attackers who try to use the bug against their domain controllers. Microsoft Defender for Identity was known as Azure Advanced Threat Protection. Whereas Microsoft 365 Defender was known earlier as Microsoft Threat Protection. 

Moreover, the Microsoft company is the one that has taken the help of the Cybersecurity and Infrastructure Agency (CISA). They issued some local agencies to look into this matter step by step. Any company that has the Windows Server device needs to patch it for running the server smoothly. This process helps to avoid potential attacks that can steal your database also.

Conclusion:

Microsoft has recently informed its employees to update the domain controllers. And they also told them to find out those devices that are making vulnerable connections. The main focus of the attackers was to get a connection to the domain controller so that they become the domain admin with only one click.

Thursday, 15 October 2020

HomePod mini: A powerful smart speaker with amazing sound

HomePod mini

HomePod mini is the new version of Apple's full-size HomePod. It is smaller and cheaper than the previous one. It is a high-quality speaker system. You can get this HomePod in White and Space Grey colour. It allows you to use it on the iPhone as a speakerphone to get more clear audio quality. But it has a drawback that you can't use it as a Bluetooth speaker. And it also doesn't allow you to work with iTunes home-sharing.

HomePod mini Features:

360-degree audio: HomePod mini offers a clear sound for a speaker of its size. The height of the hompor is more than eight cm, which is enough to make the room noisy from every angle. It can even hear your command while the speaker is at its massive sound. The wonderful design of the homepod allows it to be easily fitted anywhere in your room. It has an elegant shape covered in a seamless mesh fabric. When you use the HomePod mini, you can get a backlit touch surface on the top of the device. The easy user manual allows you to operate and control the device easily.

A connected sound system:

As soon as you place multiple HomePod mini speakers around your room, you can get an interconnected sound system. You need to ask Siri to play music. Or thou can also ask it to play different songs in each room. For the multi-room audio purposes, you can use the HomePod mini.

Stereo pair:

Want to experience the high density sound quality of Homepod mini? If Yes, then the Stereo pair can be helpful in this case. When you have paired two HomePod mini speakers in the same room, it will create the left and right channels. It is compatible with your Apple devices. You can use the HomePod mini with any Apple devices easily. Using this device, you can easily pick up an incoming call on the iPhone, hear any song on your Mac or upgrade your TV experience. It can take the sound quality of Apple TV to the next level.

Now, thou don't need to worry too much as Siri can work as a Homepod Mini. If you want a device that can make your daily job done easily or control your smart home accessories, then Siri can be a good option for you. You only need to ask Siri to do it. As soon as you ask Siri, it will make your job done. You can hear Bollywood music and track songs, playlists, or lyrics with the help of it.

Intercom is the one that can help you to communicate with your friends by voice. But you can use it when more than two Homepod exist in the room. It also allows you to use it with other Apple devices. As a result, you can send and receive messages via it while driving. It is easy to control. Homepod Mini will add the Homepod app automatically when you set-up it. Using your voice, you can control the HomeKit items easily.

Conclusion:

In this article, you can get brief details of HomePod Mini. We hope that it will help you to boost your knowledge about HomePod Mini.

Frequently Asked Questions

  • Is there any other feature of the Homepod mini other than Audio or Music?

Yes, Homepod mini uses Siri to give answers to all sorts of questions. And it doesn't involve any audio or music. It allows the users to use it as a HomeKit hub. By using it, you can control multiple HomeKit smart home accessories. You can also get here a new "Intercom" feature. It helps you to communicate with friends and family members by voice. And you can again hear other's responses with the help of their HomePod or other Apple devices.

  • Does the HomePod Mini support messaging or third party apps?

The HomePod mini supports messaging and third-party apps. For this, you need to use Siri. With the help of this, you can message anyone, friends, colleagues, and so on. WhatsApp is an app that can help you to do so. A few apps, such as Things and Evernote, are examples of Reminders note-taking and to-do list apps. Using Siri, you can set reminders, make a new list, make new notes, and modify those.

  • What are the things that you require to use a HomePod mini?

802.11n Wi-Fi Internet access is the one you need to use a HomePod mini. Besides, the iOS or iPadOS 14 users should have any one of these following:


  • iPod touch (7th generation) ● 
  • iPad Pro, iPad (5th generation) or later
  • iPhone 6s / SE (1st generation) or later iPad Air 2 or later, 
  • iPad mini four or later 
  • What is the European launch date of the HomePod mini?

The date of the announcement of the Homepod mini is 13th October 2020. People living in United Kingdom can order it from 6th November. And they can get it on 16th November.

  • Does the HomePod mini need an Apple Music subscription?

Usually, HomePod mini doesn't need an Apple Music subscription. But according to Apple, you need to subscribe to it to get full music functionality.