Eastern Europe could be the source of Apple, Facebook and Twitter hacks

Over the last few months companies such as Apple, Facebook and Twitter have been under attack by hackers originally thought to be Chinese.

The L.A. Times reports that around 40 companies were hacked, with the intention of getting any information worth selling.

Both Apple and Facebook admit to having their systems breached, but both deny that their users' information was compromised or that data was stolen.

Apple released a statement saying, "There is no evidence that any data left Apple. We are working closely with law enforcement to find the source of the malware.”

CNET is reporting that investigators have found evidence linking Eastern Europe to the attacks.

Investigators have confirmed that one of the servers used by the hackers is Ukrainian.

They have also determined that the malware being used is commonly used by cybercriminals and not spying governments.

McAfee Labs published a report in December warning of increasing attacks from Eastern European hackers, but the report was focused on US financial institutions. They called the attacks Project Blitzkrieg, and it involved the hackers planting software into a computer and using it to steal information and money.