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What are the most common internet security threats?
To ensure privacy and security on the internet, it’s important to be aware of different types of internet attacks. Common internet security threats include:
Phishing
Phishing is a cyber-attack involving disguised emails. Hackers try to trick email recipients into believing that a message is genuine and relevant – a request from their bank or a note from a co-worker, for example – so that they click on a link or open an attachment. The goal is to deceive people into handing over their personal information or downloading malware.
Phishing is one of the oldest internet security threats, dating back to the 1990s. It has remained popular to this day since it is one of the cheapest and easiest ways for criminals to steal information. In recent years, phishing techniques and messages have become increasingly sophisticated.
Hacking and remote access
Hackers are always looking to exploit a private network or system's vulnerabilities so they can steal confidential information and data. Remote access technology gives them another target to exploit. Remote access software allows users to access and control a computer remotely – and since the pandemic, with more people working remotely, its usage has increased.
The protocol which allows users to control a computer connected to the internet remotely is called Remote Desktop Protocol, or RDP. Because businesses of all sizes so widely use RDP, the chances of an improperly secured network are relatively high. Hackers use different techniques to exploit RDP vulnerabilities until they have full access to a network and its devices. They may carry out data theft themselves or else sell the credentials on the dark web.
Malware and malvertising
Malware is a portmanteau of "malicious" and "software". It's a broad term related to viruses, worms, trojans, and other harmful programs that hackers use to cause havoc and steal sensitive information. Any software intended to damage a computer, server, or network can be described as malware.
Malvertising is a portmanteau of “malicious” and “advertising”. The term refers to online advertising, which distributes malware. Online advertising is a complex ecosystem involving publisher websites, ad exchanges, ad servers, retargeting networks, and content delivery networks. Malvertisers exploit this complexity to place malicious code in places that publishers and ad networks don’t always detect. Internet users who interact with a malicious ad could download malware onto their device or be redirected to malicious websites.
Ransomware
Ransomware is a type of malware that prevents you from using your computer or accessing specific files on your computer unless a ransom is paid. It is often distributed as a trojan – that is, malware disguised as legitimate software. Once installed, it locks your system’s screen or certain files until you pay.