Encryption

How to recognize and remove malware

Malware removal: how to recognise, remove, and prevent malware

Practically every PC user fears Trojan horses and computer viruses. Security is paramount if you are managing sensitive data or setting up a server. You need a comprehensive security concept to protect yourself against insidious malware. It’s helpful to know the different types of malicious software that exists, and how to combat and safely remove them.

Encryption methods: An overview

Encryption methods: An overview

E-mail, instant messaging, or voice-over IP: If you want to communicate over the internet, you should make sure that the data transfer process can be trusted. The same goes for the World Wide Web. With online banking and digital shopping, money transactions are increasingly being carried out online. Popular encryption methods like DES, AES, or RSA should guarantee the security of passwords, credit...

Sign e-mails with a digital signature

Digital signatures: more security online by signing e-mails

Spam e-mails may be annoying, but they’re mostly harmless. What’s more problematic is phishing – a technique whereby fraudsters try to con you by posing as trustworthy sender addresses in an attempt to get hold of sensitive data. These messages appear genuine too, because without a digital signature, it’s very easy to assume a trusted identity online. In order to protect customers and their own...

Comparison of the best antivirus programmes

Antivirus software: Which software is best?

Antivirus software has sadly become indispensable as new types of threats against your system emerge regularly. Viruses, worms, Trojan horses, and many other types of malware threaten to infect your system and could cause significant damage. To counteract these threats, software makers try to fight off malware attacks with intelligent antivirus programs. Find out which rank top in our antivirus...

Turning off the Windows firewall

How to turn off the Windows firewall

Among other things, Windows includes a built-in firewall that protects your device from attacks by hackers and unwanted network traffic. To ensure you can use the Internet safely, you shouldn’t turn off the firewall permanently. However, you may sometimes find you need to temporarily disable it, for example, to install software. Read on to find out how to do this.

Protecting your e-mail address: how to do it

Protecting your email address: how to prevent spam

Spam robots, so-called harvesters, consistently search the internet for e-mail addresses that can be used for unlawful advertising, phishing e-mails, and spreading viruses, worms, and Trojans. You’re recommended to have your contact details on your website, but how do you stop them from being misused? This article gives you advice on how to protect your e-mail address.

Brute force attack: definition and protective measures

Brute force attacks: when passwords are served on a silver platter

Being constantly faced with headlines about stolen passwords, it’s understandable that many users are concerned. Your best bet is to make your passwords as complicated as possible and have them consist of many different types of characters. But even this won’t help if it’s the actual log-in area that isn’t secure enough. Even today, attackers are still successful with the notorious and simple...

Raspberry Pi: How to set up an SSH server

Raspberry Pi: activating and using SSH access

Raspberry Pi has established itself as a reliable basis for servers of various types. Access – for configuration and maintenance purposes – rarely takes place on the mini computer itself, but mostly on a desktop computer in the same network. The communication protocol is the secure SSH (secure shell), which isn’t enabled by default and hasn’t been for some time. How to activate the Raspberry Pi...


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