Tag: security

Understand the difference between deactivation and deletion, download your Facebook information, and review connected accounts before leaving.

A historical account of the 2018 text-rendering crash that affected Apple devices, and why a crash should not be confused with permanent hardware damage.

A historical look at transaction diagrams discussed after the NiceHash hack, with corrections to the original explanation of Bitcoin tracing and ownership.

A look back at Facebook's 2017 discussion of image matching, with an explanation of digital fingerprints and the limits of current prevention services.

Understand open ports, router forwarding, and UPnP, then use your own network settings and Shodan results to review internet-facing services.

Understand Fail2ban jails, configure retry thresholds, and connect WordPress login logging to server-side protection in this historical Ubuntu walkthrough.

Reduce automated WordPress login attempts with strong credentials, limited permissions, login controls, and carefully configured server protection.

An updated account of a 2017 WhatsApp voucher scam explains how fake retailer offers encouraged forwarding and why the initial virus warning was revised.

A March 2017 report described ransomware affecting the Dutch House of Representatives, with early assessments suggesting a broader email campaign.