Two teenagers have been arrested following a series of prank calls and DoS (denial-of-service) attacks launched against the Anti-Terrorist Hotline.
Anonymous hacktivists have launched a distributed denial-of-service attack against the British government's Home Office website, preventing legitimate users from visiting the site by flooding it with unwanted internet traffic.
Operation Blackout's plan to shut down the internet this weekend may have come to nothing, but there is a way in which DNS servers can be used as part of a malicious attack.
Professor Alan Woodward explains more.
The CIA's website was brought down for some hours last night by what appears to have been an internet distributed denial-of-service (DDoS) attack.
Working in the computer security industry, we're pretty used to seeing malware and hacking misrepresented on our TV and movie screens.
Here are some of our favourite examples.
When the website of rock star Gene Simmons fell victim to a denial-of-service attack, the legendary KISS front man vowed revenge.
Now the FBI has arrested a 24-year-old man in connection with the attack.
Did governing politicians in South Korea approve an election-day cyber attack?
Three of South Korea's top seven leaders quit their posts over DDoS scandal.
LiveJournal and other websites brought down as Russia turns out to vote. Could the elections have resulted in internet attacks on websites claiming that the vote was being fixed?
UK police were able to foil attempts at disrupting the international web presence of the royal wedding. The site remained online despite record interest in the ceremony.
Anonymous are threatening to attack the City of Toronto if they evict the occupy protesters from St. James Park. They have also hacked political websites in Mexico during this weekend's election posting videos accusing officials of corruption.
Anonymous launched DDoS attacks against El Salvador's government, forcing several websites to be temporarily taken offline.
New variants of the latest Mac malware - the Tsunami backdoor Trojan - have been discovered.
The sky is not falling, and Mac users should not panic. But it may still be prudent to ensure your computers are protected against this and other Mac threats.
The Tsunami Mac backdoor allows cybercriminals to gain access to your Mac computer and launch denial-of-service attacks against third-party websites.
The London 2012 Olympic Games will open in nine months time, and - away from the glories anticipated on the track and field - consideration is being made about how to defend the world's leading sporting event from cyber-attack.
The FBI believe that the homeless man they arrested on Thursday was "Commander X", a member of the People's Liberation Front (PLF) associated with Anonymous hacktivism.
See "Commander X" defending denial-of-service attacks in a TV news report.
Four men have appeared in court regarding various Anonymous and LulzSec internet attacks, and were granted bail on the condition that they did not use specific online nicknames or Internet Relay Chat.
A teenage boy from Chester has been charged by British police in connection with a series of internet attacks by the Anonymous hacktivist group.
Meanwhile, another hacking suspect is denied access.. to his girlfriend.