Sunday, January 29, 2012

How a Penetration Tester Can Benefit Your Business

Pen - How a Penetration Tester Can Benefit Your Business

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Do you know - How a Penetration Tester Can Benefit Your Business

As part of a team of information security consultants, or as an employee of the organisation, a penetration tester will probe the organisation's network defences to discover weaknesses, and may then go on to exploit those weaknesses in a way that demonstrates risk without causing damage. "Pen tester" proceeds in an ethical and professional manner, taking care to cause no damage and working strictly within the limits of the agreed terms of engagement.

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In this way, the penetration tester differs from the criminal "hacker" (also known as a "cracker"), who attempts to penetrate and exploit an organization's computer systems for personal or monetary gain. Possible damage from malicious hackers could include: breaches of confidentiality (for sensitive documents), loss ofintegrity (if important documents are altered), and denial of service (if systems become unavailable to legitimate users). In addition, repairing the depredations of criminal hackers can cost significant sums of money, as well as "incalculable reputational loss.

Clearly, a penetration tester can be an invaluable ally in the fight against cyber-crime. However, it is crucial to select a "pen tester" very carefully. Some simple safeguards might include the following:

Check that the penetration tester does not have a criminal record of any kind (not merely for hacking, but for any crime).

Check that the pen tester has never been a malicious hacker (though this may be more difficult to establish).

Check the tester's technical expertise and formal certifications. This mayincludes qualifications from CREST (Council of Registered Ethical Security Testers) or from the newer "Tiger Scheme", or perhaps the CEH (Certified Ethical Hacker) which (unlike the preceding qualifications) does not contain a practical component to the exam. There is also the CHECK Consultant status, which denotes approval for work on UK Government projects.

Check that the penetration tester stays up-to-date with advances in the field, with a good number of Continuing Professional Development (CPD) activities such as: reading journals, attending conferences, or participating in Internet discussions. In particular, CREST and CEH-certified consultants must re-take the examination every three years in order to retain their accredited status, and so their penetration testing skills willbe kept fresh.

It is also an advantage if the pen tester has some background in business-related context, with the accompanying insight into the business impact of weaknesses found, as against their purely technical impact.

Penetration testing is a highly skilled and specialised task, and even those with the appropriate technical competence may not always be the best person to select. This may be for reasons of ethics, past history, or simply lack of business-related insight. But if the right penetration tester for the organisation can be identified, then it is worth establishing a long-term relationship with that person or consultancy, since pen testing is a crucial component of security testing that should be carried out on a regular basis.

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