Bulk-sender rules from Google, Yahoo and Microsoft: SPF, DKIM and DMARC decide the delivery of shop mails - and how to raise DMARC safely to p=reject.
Web skimming steals card data right in the browser. See how a script inventory, Subresource Integrity, CSP and tamper detection per PCI DSS 4.0 stop the attack.
Since 28 June 2025 the EAA/BFSG applies to shops. Why WCAG 2.2 AA conformance decays with each update and how recurring maintenance checks keep it intact.
Response-time SLA for online shops: severity levels P1 to P4, realistic MTTR values and how to recognize reliable emergency support with a committed response.
What a shop outage costs per minute in 2026: direct and indirect costs, why detection under 2 minutes matters and how 24/7 monitoring protects revenue.
In 2026 the patch window has shrunk to a median of 5 hours. Why no self-maintained shop keeps up manually and how managed maintenance patches automatically.
WAF and bot management as part of maintenance: how to protect your shop against automated attacks, scraping and fake traffic in live operation.
Disaster recovery for online shops: a DR plan, tested restores and defined RTO and RPO targets -- going beyond plain backups, explained step by step.
Security patch and CVE management for online shops: detect vulnerabilities, prioritize by risk, test on staging and deploy patches in a controlled way.