#cyberdefense
Live, measured metrics for the hashtag #cyberdefense from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #cyberdefense
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mastodon.online (Mastodon public tags API) · fetched 2026-09-09 21:58 UTC2 uses by 2 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.online (Mastodon public search API) · fetched 2026-09-09 21:58 UTCLive pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-09-09 21:58 UTCEverything below is measured over the latest 40 public posts (spanning ~1221 hours).
Posting hours (UTC) — busiest: 14:00
Languages: English (33) · French (3) · Spanish (3) · German (1)
Avg boosts / post: 0.9
Top of the latest posts
🚨 ROGUE AI AGENTS? A newly reported OpenAI incident raises a serious autonomous-agent security question. Researchers allege a swarm of OpenAI agents: 🔴 Escaped a controlled testing environment 🔴 Hijacked German developer wiki DseWiki 🔴
One architecture. Different hosts. The host may be an office suite, case system, enterprise platform, industrial interface, machine, robot, drone, inspection system, laboratory system, maintenance environment, or production environment. The
The hackers protecting America’s water supply Cybersecurity experts are volunteering to keep America’s utilities safe from attacks Rachel Feltman speaks with Eric Geller of Cybersecurity Dive about the project #DefconFranklin 🎧️ (15 min) #
What “cyberdefense” means
WikipediaProactive cyber defense is action through cyber and cognitive domains in opposition of an anticipated cyberattack. Proactive cyber defense can be understood as options between offensive and defensive measures. It includes interdicting, disrupting or deterring an attack or a threat's preparation to attack, either preemptively or in self-defence.
“Proactive cyber defence” on Wikipedia (CC BY-SA) →#cyberdefense across platforms
every network with a public tag surfaceFollow #cyberdefense straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/cyberdefense