The United States (US) Department of Homeland Security has issued a warning to corporations to be wary of cyberattacks. Reportedly, the objective of recent attacks has been to gain control of an organisation's networks or processes rather than to obtain data or trade secrets. According to the New York Times, senior officials warned the latest spate of attempted attacks targeted the administration systems of up to ten American energy companies.

The Australian House of Representatives Joint Select Committee on Cyber-Safety (JSCC) has announced that it has presented the report on its inquiry into cybersafety for senior Australians Cybersafety for Seniors: A Worthwhile Journey (March 2013) to parliament.

The Guardian reports that several of its Twitter accounts were hacked by the Syrian Electronic Army (SEA). The Guardian reportedly discovered that the Twitter accounts were accessed via phishing attacks, where account holders had clicked on bogus links.

The United States (US) Commodity Futures Trading Commission (CFTC) has made available a speech (30 April 2013) delivered by CFTC chairperson Gary Gensler before the CFTC technology advisory committee in which he references a recent social media hacking incident.

An increasing number of companies are participating in programs that reward computer experts for exposing security issues in their online assets. Australia-based supermarket chain Coles has reportedly agreed to pay a bounty to individuals who are able to exploit security bugs in its online applications and protocols, while companies such as Rabobank, BigCommerce and Google have already participated in the program.

Information technology security professional Matthew Flannery has been arrested in relation to a breach of a government website. Mr Flannery has also reportedly claimed to be a leader of hacking group LulzSec, which is accused of numerous high profile cyber-attacks.

The Twitter account of news agency Associated Press (AP) was hijacked by hackers and made to post a false report about explosions in the White House on 23 April 2013, reports Reuters. The post was quickly confirmed as "bogus" by an AP spokesperson, according to Reuters. A group calling itself the Syrian Electronic Army reportedly claimed responsibility for the AP hack.

The United Kingdom (UK) Department for Business, Innovation and Skills (BIS) has released the following documents (all dated 23 April 2013):

A cyber attack affected 32,000 servers in the Republic of Korea, including those hosting data from banks and broadcasters. Korea Communications Commission spokesperson Shin Hong-sun reportedly described the incident as "the biggest and most serious cyber attack [on South Korean targets] in two years". According to The Guardian, the attack disrupted electronic banking transactions, but no customer details were compromised.

Technological security firm MailGuard has stated that it "identified and stopped a torrent of malware laden emails purportedly coming from [the Australia based bank Westpac]" on 14 March 2013. According to MailGuard, in the hours after the email deliveries had been stopped, the malicious content "was still only being picked up by two of the 44 largest [anti-virus technology] providers".