Twitter has warned media companies that attacks on their official Twitter accounts are liable to continue, after Britain’s Guardian newspaper became the latest high-profile news site to fall victim.

Daily deals site LivingSocial has become the latest high-profile site to fall victim to hackers, after an attack accessed information for 50 million accounts last week.

Adrian Price, Head of Information Security at Britain’s Ministry of Defence, suggested that governments should devote 20% of their budget to protecting the nation’s data – a sum worth billions more than that currently allocated in countries such as the UK itself.

Twitter is said to be testing new security systems in the wake of a false Tweet from an official Associated Press account which sent stock markets tumbling in America.

Half of British adults use the same password across all the websites they access, according to telecoms regulator Ofcom. The data comes from a survey of 1805 adults aged 16 and up. The report, Adults’ Media Use and Attitudes Report 2013, found that 55% of adult internet users admitted they used the same password for

Most cyber attacks are simple and predictable, relying on basic tactics and preventable employee errors, according to Verizon’s annual Data Breach Investigations Report. The problem is made worse by the fact that companies often take months or even years to detect such breaches.

Twitter accounts used by CBS News were compromised on Saturday – and began serving up bogus news stories with links to malware.

A three-day “cyber war” ended in victory for a team from the U.S. Air Force Academy, who beat off attacks from hackers from the National Security AGency in the 13th annual Cyber Defense Exercise (CDX).

The Cyber Intelligence Sharing and Protection Act (CISPA) passes the U.S. House despite privacy concerns and the threat of presidential veto.

A quarter of PCs around the world have no antimalware software, according to Microsoft’s latest Security Intelligence Report.