In another warning to PC users and IT security managers, new research from security vendor Trend Micro has found that malware lingers on devices much longer than previously thought - for months and sometimes years.
Previous estimates have said the average compromised machine remains infected for around six weeks, but now Trend is saying that many computers are infected or repeatedly infected for more than two years, with a median infection length of 300 days for some countries.
The security vendor analysed around 100 million compromised IPs and found that 80 per cent of all compromised machines have been infected for more than a month - with at least a quarter of these business computers.
With malware becoming increasingly difficult to locate and remove, the message is clear for firms - ensure your systems are running comprehensive scanning and remediation tools alongside any anti-malware technology. Deflecting attacks is only part of the battle.
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