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A Marathon is a big run. It is 42.195 Km long or 26 Miles and 385 Yards. That is 60.000-70.000 footprints.
PCI-DSS: System Administration
PCI_DSS (Payment Cardholder Industry – Data Security Standard) is a proprietary standard (publicly available) aimed to guarantee information security within companies dealing with credit card data, belonging to operators like Visa, MasterCard, etc.
The standard is composed by 12 domains, corresponding to the main 12 requirements, in order to catalogue security controls (protection countermeasures):
Cryptographic Keys both for data “at Rest” and “in Motion” (together with paired digital certificates) own proper life cycle by which manage these, logically not correlated with technology (i.e. cypher algorithm) and scope (rest, motion).
Key Management: Operations