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vulnerabilities, threats, attacks and countermeasures

CAPTCHA

CAPTCHA: Completely Automated Public Turing test to tell Computers and Humans Apart A CAPTCHA ...

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principles, frameworks and best practices

DKIM

DKIM: DomainKeys Identified Mail […] permits a person, role, or organization that owns the ...

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principles, frameworks and best practices

DMARC

DMARC: Domain-based Message Authentication, Reporting, and Conformance […] is a scalable mechanism by which ...

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vulnerabilities, threats, attacks and countermeasures

S/MIME

S/MIME: Secure/Multipurpose Internet Mail Extensions […] a technology that allows you to encrypt your ...

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principles, frameworks and best practices

SPF

SPF: Sender Policy Framework […] a domain may explicitly authorize the hosts that are ...

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