Oracle’s latest version of Java software is claimed to be vulnerable to hackers, as it unlocks PCs to hacker attacks with no way to defend against their attacks, according to researchers.

Researchers reveal that the security gap is affecting all versions of Internet Explorer, Firefox and Opera, while Google Chrome is said to be less affected.

Mac users operating on earlier versions of OS X, which include Snow Leopard or Leopard, could be more vulnerable as those operating systems are developed using Java.

The warnings were reported by Rapid7, AlienVault and other cyber security firms which are likely to alarm a PC community who are trying to prevent security threats from hackers, viruses and malware.

Researchers have recognised the code which attacks machines by developing a newly discovered error in the latest version of Java.

When the new code is executed, a second piece of software called ‘Poison Ivy’ is released that allows hackers to achieve control of the infected computer.

Rapid7 Metasploit division engineering manager Tod Beardsley said, "If exploited, the attacker will be able to perform any action the victim can perform on the victim’s machine."

According to researchers, computers can get infected without their users’ knowledge by a visit to any hacker compromised website.

Disabling of Java browser plugin is expected to highly reduce the affect of hacking, experts said.