The Electromagnetic Spectrum Explained: From Radio Waves to Gamma Rays
The electromagnetic spectrum is one wave at every frequency. Its bands, c = f times lambda, photon energy, radio licensing and what exposure limits cover.
Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
The electromagnetic spectrum is one wave at every frequency. Its bands, c = f times lambda, photon energy, radio licensing and what exposure limits cover.
IPv6 hosts build addresses from router advertisements (SLAAC) or lease them via DHCPv6. How M and O flags, privacy addresses and RA Guard work.
Wi-Fi mesh links several access points into one network. How EasyMesh, backhaul, 802.11k/v/r steering and DPP onboarding work, and how to secure each node.
iOS 14 to iOS 26 each added a security default, from App Tracking Transparency to Lockdown Mode and memory tagging. Dates, devices, patch support, checks.
Open-weight models publish weights, not always data or code. How licences, sizes, safetensors, GGUF and pickle differ, and how to verify a model's origin.
Researchers tie 70,000+ exposed credentials to an access broker abusing FortiWeb CVE-2025-64446 and PAN-OS CVE-2026-0257. What to patch, hunt and rotate.
Pillow 13.0.0 fixes Ghostscript argument injection, an FPX heap overflow and two more memory bugs. Upgrade every copy, or disable EPS and FPX today.
CVE-2026-21589 lets anyone read known files on eight Atlassian Data Center products. CISA lists it as exploited. Move to Atlassian's fixed releases now.
The Eclipse Foundation is a Brussels based open source foundation. Learn how it is governed, how projects mature and how it prepares for the CRA.
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