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Every feed, one page.

Threat clusters, CVEs, weaponised exploits, ransomware victims and a blocklist, as RSS, JSON, CSV and MISP. All public, no key, refreshed hourly. (Saved per-entity feeds inside the product are custom feeds.)

10+
public feeds
1h
refresh interval
60/min
rate limit per IP
20,000+
sources monitored

No authentication on any feed below. Point a reader, a SIEM or a cron job at it.

Start here

One import, all feeds

Download the OPML bundle and import it once, your reader picks up every public feed on this page.

Feedly: Organize → Import OPML. Inoreader: Preferences → Import/Export. NewsBlur, Reeder and any other RSS-capable tool will take the same file.

https://threatcluster.io/feeds.opml

Threat intelligence

5 RSS feeds

Threat Feed Public RSS 2.0 50 items · 1h refresh

The top 50 trending threat clusters from the last 7 days, the same content as the home page. Each item links to a cluster page with the summary, timeline, source articles and related entities.

https://threatcluster.io/feed.xml

Early Warning Feed Public RSS 2.0 50 items · 15 min refresh

Stories that rest on one trusted source so far: a researcher disclosure, a vendor advisory, a CERT notice or a Hacker News warning, published the moment it appears instead of waiting for a second outlet. Titles are prefixed [Early signal, one source] until a second publisher covers the story, then [Corroborated]. The same list as /early-warning.

https://threatcluster.io/early-warning/feed.xml

Vulnerabilities Feed Public RSS 2.0 50 items · 1h refresh

Latest CVEs from the last 7 days, enriched with severity, CISA KEV status and public PoC availability. What is hitting the news cycle this week, not the firehose of every NVD entry. Item titles look like CVE-2026-28318 [KEV] [Exploit].

https://threatcluster.io/vulnerabilities/feed.xml

Exploits Feed Public RSS 2.0 50 items · 1h refresh

CVEs with publicly available proof-of-concept code, from the last 30 days, sorted by exploit availability then CVSS, the same content as /exploits.

https://threatcluster.io/exploits/feed.xml

Dark Web Victims Feed Public RSS 2.0 50 items · 1h refresh

Newly observed victims on ransomware leak sites, from the last 14 days. Titles read “Victim, claimed by [Group]”, with description fields for country, sector and the group's public post text. Aggregated from /dark-web.

https://threatcluster.io/dark-web/feed.xml

Dark Web Data, CSV & JSON Public CSV / JSON 1h refresh

The same corpus behind the RSS feed, as structured data. Victims carry group, country, sector and the leak-site post URL; the onion list covers extortion leak-site addresses with their operator and current status.

These are claims published by the groups themselves. A listing is not confirmation that a breach occurred, or that the group's claim is accurate.

Site rows carry the page title, claimed operator, language, login/captcha gate and a link to our own watermarked screenshot where we have one.

https://threatcluster.io/api/darkweb/public/victims.csv
https://threatcluster.io/api/darkweb/public/onions.csv
https://threatcluster.io/api/darkweb/public/groups.csv
https://threatcluster.io/api/darkweb/public/victims.json

Victim feeds default to a 90-day window (CSV) and 30 days (JSON); add ?days=365 for more. The JSON carries company enrichment, legal name, headquarters, data size, where the leak post included it.

Snapshotted daily to GitHub with history: Jam0k/Ransomware-Intel , victims (90d / 365d / first-party only), groups and onion addresses.

For tooling

Blocklist, MISP

IOC Blocklist Public TXT JSON CSV 1h refresh

High-confidence malicious domains and IP addresses from the last 30 days, ready to paste into pfSense, Pi-hole or a firewall blocklist. Plain text for drop-in use, JSON when you want the source attribution, CSV for spreadsheets. Hosts, AdGuard and Suricata variants, per-type files and full history are on the IOC page.

https://threatcluster.io/api/iocs/public/feed.txt
https://threatcluster.io/api/iocs/public/feed.json
https://threatcluster.io/api/iocs/public/feed.csv

MISP Feed Public MISP 1h refresh

MISP-compatible public mirror: the 10 newest events, no key or token required. Starter and above unlock 50 events with historical replay (see formats). Manifest at /misp/manifest.json, per-event JSON at /misp/{uuid}.json, optional hashes index at /misp/hashes.csv. Add it in your MISP UI under Sync Actions → List Feeds.

https://threatcluster.io/misp/manifest.json

AlienVault OTX Pulses Public OTX

ThreatCluster clusters published as pulses on AlienVault OTX. Subscribe to the projectargus account in OTX and the indicators flow straight into any tool already wired to the Open Threat Exchange, no extra integration on your side.

https://otx.alienvault.com/user/projectargus/pulses

Your own feed

Starter and above

My Interests & Custom Feeds Starter and above RSS 2.0

Feeds filtered to the entities and keywords you track, your vendors, your sector, your suppliers. Set them up in Settings → Interests, or save a Custom Feed from any filter combination. Authenticated by session cookie, so a signed-in browser needs no API token. Custom feeds come with Starter, $7.99 a month (plans).

https://threatcluster.io/api/feed/interests.xml
https://threatcluster.io/api/feed/custom/{feed-uuid}.xml

Notes

Limits and formats
  • The RSS feeds are RSS 2.0 with an atom:link rel="self"; the main threat feed also advertises a WebSub hub for push delivery.
  • Cache TTL is one hour. Polling faster will not return fresher items.
  • Rate limit is 60 requests per minute per IP.
  • Need STIX / TAXII or a full-fidelity firehose? That is on /formats.
  • Want to contribute findings back? Get in touch about ingestion partnerships.