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www.thinkit.uk.com The DR question: How likely is it to happen, and - - PowerPoint PPT Presentation
www.thinkit.uk.com The DR question: How likely is it to happen, and - - PowerPoint PPT Presentation
www.thinkit.uk.com www.thinkit.uk.com The DR question: How likely is it to happen, and how bad will it be? www.thinkit.uk.com Situation where robust DR is NOT in place. Fire & Theft V.Unlikely, Really Bad! Hard Drive Failure
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Situation where robust DR is NOT in place.
Fire & Theft – V.Unlikely, Really Bad! Hard Drive Failure – Likely, Usually ok. Data Corruption – Likely, Usually ok. Accidental Deletion – Likely, Usually ok.
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Pierre de Fermat 1607 - 1665
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- Take two prime Numbers and multiple
them.
- EG: 7 x 13 = 91
- Only one answer & easy
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- Try the Reverse:
- Find A x B = 91
- Guess work!
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That’s how modern encryption works. Take two massive prime numbers, multiply them, do some clever maths, and you have a key which is (almost) impossible to find.
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Great News: We have safe Internet Commerce (Https:) Bad News: Encryption Attacks.
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If you are attacked by Crypto-virus, unless you have a backup, the data is lost for ever.
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Situation where robust DR is not in place:
Crypo-virus – Quite Likely, Really bad!
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