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Technical recommendation 01/21

The NCSC's technical recommendation 01/21 describes the importance and recommends the use of the STARTTLS and DANE standards for greater security in the transfer of electronic mail (SMTP) between organisations.

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Do you use social media? Do you think you have all the necessary precautions when using them to be safe and protect your privacy?
The e-learning course "Cybersocial Citizen" provides essential advice for a safer use of social media. Learn more here

Last updated on 07-05-2026