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In today's news: One of the biggest online black markets within the dark web, Agora, has been shut down by its operators due to security concerns, citing fears that their servers could be traceable through vulnerabilities in the Tor hidden services protocol. More IT security news at www.itsecurityguru.org @IT_SecGuru

In today's news: Web-based Git repository service GitHub has been under a distributed denial of service, or DDoS attack. The service's status page reported a 'brief capacity overload' before the site identified the DDoS attack on Tuesday morning. More IT security news at www.itsecurityguru.org @IT_SecGuru

In today's news: The data breach at Ashley Madison is feared to have driven two more people to suicide, following a Texas resident taking his own life last week.

Australian telco Telstra has been unknowingly serving up one if the world's most dangerous hacking tools after its news site was infested with malvertising.

A UK teenager was part of a team of hackers who caused government websites in the UK and one used by the FBI to crash through cyber attacks.

Gaming and hosting companies have been hit with a new kind of DDoS attack that could snowball without preventative steps, Level 3 communications warned on Monday.

Popular taxi app company Uber have announced an increase in security staff to combat data breaches and hackers.

In today's news: Numerous security flaws in Android have become apparent - in Stagefright, the sandbox and in the Google Admin app - are mobile operating systems simply doomed to flaws? More IT Security News at www.itsecurityguru.org @IT_SecGuru

In today's news: A wave of malware has hit online advertising, as hackers buy up ad space which they then use to scope out potential victims for their trojans. More IT Security News at www.itsecurityguru.org @IT_SecGuru

In today's news: 32 people are facing charges in the US after authorities investigated an alleged international hacking and insider trading ring. The group's members, operating in the US and Ukraine, allegedly netter more than $100m (£64m) in illegal profits. More IT security news at www.itsecurityguru.org @IT_SecGuru