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  How to Block Paytm, Google Pay, Phone Pe if You Lose Your Phone  Paytm allows you to log out of all your devices using a few easy steps through the customer care helpline. How can you prevent payments apps from being misused if you lose your phone? With Unified Payments Interface (UPI) in India, services like Paytm, Google Pay, Phone Pe, and others have become something of a necessity. Most users have at least one payment app on their phones linked with UPI. While UPI offers a secure and simple way to make payments or transfer money to someone, if someone has access to your phone they could use it to transfer money. So what happens if the device that carries all your payment apps gets stolen? In case you lose your phone or it gets stolen, there are steps you can take to block these services from being accessed. We have put together a step-by-step guide on how you can block  Paytm ,  Google Pay , or Phone Pe in case you lose your phone. This will ensure that your UP...

Ransomware key to unlock customer data from REvil attack     A computer key that can unlock the files of hundreds of companies which were hacked in a large-scale cyber-attack has been obtained. US IT firm Kaseya - which was the first to be targeted earlier this month - said it got the key from a “trusted third party”. Ransomware is malicious software that steals computer data and scrambles it so the victim cannot gain access. The hackers then ask for payment in return for releasing the files. Kaseya’s decryptor key will allow customers to retrieve missing files, without paying the ransom. She told tech blog  Bleeping Computer  that the firm was actively helping customers restore their files. The "supply chain" attack initially targeted Kaseya, before spreading through corporate networks which use its software. Kaseya estimated that between 800 and 1,500 businesses were affected, including  500 Swedish Coop supermarkets  and  11 schools in New Zealand. ...

  Topics under Ethical Hacking & Cyber Security Cyber Security & Ethical Hacking Need of cyber security Ethical hacking Types of hackers Penetration Testing Footprinting Footprinting techniques Cryptography Types of Cryptography Symmetric / Asymmetric Digital Signatures Hash functions Computer Networks & Security Computer Network Architecture; Layered Architecture OSI Model TCP / IP Model Common Network Threats Application & Web Security Web server architecture & attacks Web client architecture & attacks Counter measures & patch management Identity & Access Management (IdAM) Authentication Authorization IdAM Password protection Identity threats Vulnerability Analysis (VA) & System Hacking VA Types VA Lifecycle VA Tools Vulnerability scoring system VA Report System Hacking Password cracking Privilege escalation, hiding files, clearing logs Sniffing & SQL Injection Malware & its types Sniffing attacks ...

Why Do You Have to Turn Off Electronic Devices on an Airplane? Mobile telephones , tablets, portable  video game  units, and other electronic devices are ubiquitous 21st-century time killers. We can play games on them, communicate with family and friends on them, and browse the  Internet  on them. One would think that they would come in very handy to pass the time during a multi-hour airplane flight, where movement from one’s seat is discouraged. However, those of us who have flown during the past decade are familiar with the preflight reminder to turn off all electronic devices or keep them in “airplane mode” (or “flight mode”) during the entire flight. We are warned that cellular service must be turned off because device transmissions interfere with the aircraft’s navigational equipment. But does this really happen? Can your cellular phone or other electronic device truly endanger the flight? The first step is knowing how your electronic device works and ...

  Pegasus spyware: How does it work? Governments around the world are facing bombshell allegations that they used Israeli-made malware to spy on the phones of activists,  journalists , corporate executives and politicians. But how exactly does the  Pegasus spyware  work? How does it get onto people's phones -- and what can it do once it's there? How does Pegasus sneak its way onto a phone? Researchers believe that early versions of the hacking software, first detected in 2016, used booby-trapped text messages to install itself onto the phones of targets. The recipient would have to click on a link in the message in order for the spyware to download. But this limited the chances of a successful installation -- particularly as phone users have grown increasingly wary of clicking on suspicious links. More recent versions of Pegasus, developed by the Israeli firm the NSO Group, have exploited weak spots in software commonly installed on mobiles. In 2019 the messagin...

  How can I protect my PC from viruses? There are many preventive steps you can take to help protect your PC from viruses and other threats. Use an anti-malware application. Installing an anti-malware application and keeping it up to date can help defend your PC against viruses and other malware (malicious software). Anti-malware applications scan for viruses, spyware and other malware trying to get into your email, operating system or files. New threats can appear daily, so check the anti-malware manufacturer's website frequently for updates. Windows Defender is free anti-malware software included with Windows, and you can update it automatically through Windows Update. You can also visit the Windows Store and look for an antivirus app, or visit the Windows Compatibility Center website to look for antivirus applications that work with Windows 8.1 . Don't open email messages from unfamiliar senders or email attachments that you don't recognise. Many viruses ar...

  Creating a user account With user accounts, several people can easily share a single PC. Each person can have a separate account with their own settings and preferences, like a desktop background or screen saver. User accounts also help control which files and applications each person can use and what changes they can make to the PC. When you create a user account, there are two types of account to choose from: a local account for that PC or a Microsoft account, which works on all the Windows 8.1 and Windows RT 8.1 PCs you use. We recommend a Microsoft account. Note If your PC is on a domain, you can create user accounts that let people sign in to your PC, but not to the domain. Only system admins can create domain user accounts. To create a Microsoft account   A Microsoft account is an email address and password that you use to sign in to Windows. You can use any email address, but it's best if you choose the one you already use to communicate with friends ...