An IT security specialist has warned Apple Mac and Windows users of potential security holes in Microsoft software.

Vulnerabilities can be found in Mac and Windows versions of MS Office and could be exploited by hackers to gain remote control over a user's computer or install malicious code, according to industry experts at Sophos.

Graham Cluley, senior technology consultant at the firm, said that customers should make use of patching technology developed by Microsoft to deal with the flaws.

"As internet criminals become more organised and financially motivated, it is more important than ever to ensure that your business is properly defended with the latest patches," he added.

Earlier this week, IT security provider BitDefender compiled its list of the most popular malware attacks for April and found that cybercriminals are increasingly making use of malware packers as their chosen means of attack.

The same kind of malicious software packer accounted for three of the places in the table, according to the company.


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