THE US Federal Reserve has confirmed its computer systems were accessed by hackers but said the incident did not affect the central bank's "critical operations".
The acknowledgement came days after the hacker group known as Anonymous claimed it had posted personal information of some 4,000 bankers, purportedly obtained from the Fed.
"The Federal Reserve System is aware that information was obtained by exploiting a temporary vulnerability in a website vendor product," a Federal Reserve spokesman said in a statement.
"The vulnerability was fixed shortly after discovery and is no longer an issue. This incident did not affect critical operations of the Federal Reserve System."
On Monday, an Anonymous-linked Twitter account called Operation Last Resort, claimed in a tweet to have obtained and posted "4k banker d0x via the FED".