Physical crimes leave behind a trail of evidence that forensic teams can analyse and bring to court, but what about cybercrime, such as the theft of intellectual property? Computer forensics expert and director of Klein & Co Nick Klein said that when companies conduct a digital forensic investigation themselves, there are five things they should do.
(Image by Mad House Photography, CC BY 2.0)
Speaking at the Security 2011 Exhibition and Conference event in Sydney yesterday, Klein said businesses that had suspected that a digital crime had been committed on their systems often took a “Bunnings” approach to forensic analysis, and suggested a four-step structure for undertaking an investigation.
Prepare the business:
Prior to a breach occurring, businesses could do some preparation, which would help them later on in an investigation, Klein said.
He said that typically, businesses had a lack of policies and procedures to secure data, with in-house legal counsel often not working together with a business’ IT department in developing policy. He said that policies, such as making a full backup of an ex-employee’s machine prior to their departure, are often overlooked, when they could provide critical information to assist a case months later.
He also said that despite most operating systems allowing businesses to enable logging on sensitive information, most businesses tended to only use minimal logging of access.
Another area that Klein suggested businesses look at was where backups and critical databases were stored, and whether policies should be implemented to require employees to store information on the company’s file server, where the business would have greater control over it.
“We have a lot of cases where people say, ‘We had an employee who deleted their email. The only copy of it was a PST archive [which contains Outlook emails] on their computer. Can you get it back?’ A simple policy change to force that person to store that PST on the network could have overcome that.”
Lastly, Klein said that businesses often didn’t do enough to protect themselves in their employment contracts.
“Does it talk about confidentiality of information? Does it talk about monitoring of their user activity? Does it include things like USB devices? Can you have something in your employment contracts that says, ‘When you leave, we may ask you for your USB devices’? — It’s something to think about.”
continued @ 5 tips to catch an intellectual property thief – Security – News – ZDNet Australia.