An FBI memo sent out on Thursday described the attacks as "a widespread problem that should be addressed", according to Reuters.
In yet another "don't open that e-birthday card" saga, 33-year-old Carlos Enrique Perez-Melara, now on the FBI's 10 most wanted cybercriminals list, allegedly sold malware that planted a keylogger, as well as remotely controlling a victim's computer and webcam.
Who was Dread Pirate Roberts, and where is he now? What happened in Adobe's latest network breach? What is "cryptographic chutzpah", and how do you show it?
Find out in the latest 60 Second Security...
Just under two months ago, we wrote about the mysterious closure of Edward Snowden's secure email service, Lavabit.
With the unsealing of US court documents, a fascinating (and cheeky) cryptographic tale has emerged...
The FBI shut down an online drug bazaar that prosecutors said arranged more than $1 billion in sales of heroin, ecstasy and every known type of prescription medication. Is this a victory over a lawless realm where people can buy any drugs they like, or a defeat for freedom?
Servers at Lexis-Nexis, Dun & Bradstreet, and Kroll Background America/HireRight show up in the dashboard of a small, effective botnet run by a service that sells vital personal information on US residents, an investigation has revealed.
How safe is the SIM in your mobile phone? Could it be remotely infected with malware?
Possibly - watch this week's 60 Second Security video and find out more!
"There is a cyberwar going on", according to the UN's telecoms boss Hamadoun Toure. Cyber terrorism is capable of causing "mass destruction", says former director of the FBI Louis Freeh. Vladimir Putin, no less, thinks digital attacks could be more damaging than conventional weapons.
But so far there seem to be no human casualties from this 'cyber war', no physical effects from cyber terror. So why all the hype?
The world's business leaders have high levels of confidence in their organisations' cyber defences, but that confidence is largely out of tune with reality, according to a recent report.
Facebook's Mark Zuckerberg has vehemently denied giving the government direct access to servers. Facebook, Twitter, Microsoft and Google have all put out calls for transparency into the US government's information demands.
Last week, Microsoft took aim at more than 1,400 Citadel botnets by sinkholing their command and control infrastructure.
What was the actual effect of this takedown? SophosLabs takes a look...
Here's a brief summary of what we know, what we don't know, and how you can at least try to protect yourself from surveillance.
Microsoft just announced the successful disruption of 1462 "Citadel" botnets.
You read that correctly!
Not a botnet of 1462 computers, but 1462 separate botnets...
The judge who decided that national security letters demanding user information were unconstitutional has now ordered Google to comply with the FBI's data demands. Is this just one more golden brick in what privacy advocates have dubbed the Golden Age of Surveillance?
Beware the auto seller on Craigslist who says he'll send photos on request - he could well be a crook who sends files packed with malware, the FBI has warned.
Our 60 Second Security videos are back!
We're aiming for a weekly roundup that's quick, fun and useful.
But there is a serious side: security anecdotes to use in your own "elevator advocacy."
The FBI suspects that 24-year-old Hamza Bendelladj, an Algerian national, developed, marketed, distributed and controlled the notorious botnet toolkit, used to steal millions of dollars from online bank accounts.