Blog
Concrete advice for those of you responsible for IT – without scare tactics and without needless jargon.
Regulation · 27 October 2026 · 7 min read
Who is covered, what the law requires and why businesses outside its scope are affected through their customers.
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Email security · 23 October 2026 · 8 min
Three DNS records decide whether someone can send email in your name. How they work and in which order to introduce them.
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Web security · 20 October 2026 · 5 min
Why certificates still expire, what it costs and how to make sure it never happens again.
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Incidents · 16 October 2026 · 6 min
A practical checklist for the first hours and days after addresses on your domain turn up in a breach.
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Web security · 13 October 2026 · 7 min
HSTS, Content-Security-Policy and three more – what they do, what they don't do and how to introduce them without breaking anything.
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