Computer networks at several South Korean banks and TV broadcasters crashed simultaneously early Wednesday. The attack paralysed ATMs across the country starting at 0520 GMT and they were still down six hours later.
The Federal Reserve has confirmed that it's been hacked, following a claim from Anonymous that it's harvested the details of 4,000 US bank executives.
The wave of cyberattacks that hit US banks in September was the work of Iran, according to a US government official.
A group of Saudi hackers is claiming to have accessed and published the credit card details of hundreds of thousands of Israelis.
Cyber activists associated with Anonymous and TeaMp0isoN hackers have combined forces to launch Operation Robin Hood.
If you can't make it to Wall Street - or can't be bothered - it's now possible to have all the fun of a protest demo without getting arrested or rained on.
Whistle-blowing website Wikileaks has suspended the release of information, and says that financial problems could lead to the permanent closure of the site.
With technology now so much a part of daily life, the average person maintains a password for multiple accounts, including e-mail, instant messaging and banking.
Well, we thought we were prolific, but we've got nothing on the wrold's hackers, who are creating 57,000 new fake web addresses every week.