PortSwigger Research
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 40 entries at check time
portswigger.net
Λ / PUBLIC / SEARCHABLE / EXPORTABLE
The source observatory.
A growing, attributed directory. Find the publisher, understand the source, and trace the record.
3,130Cached intelligence records
831Catalog entries
353Enabled feeds
44Feeds with a successful latest attempt
Positive Security | IT Security research and happy coincidences
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
positive.security
Predictive Defense Blog
Directory referenceCatalog entry; endpoint not checked in this build
blog.predictivedefense.io
Privacy & Freedom in the Information Age
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.reddit.com
Product Hunt — The best new products, every day
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 50 entries at check time
www.producthunt.com
Project Zero
okRSS/Atom endpoint checked 2026-10-06; 10 entries at check time
googleprojectzero.blogspot.com · INGESTED Oct 06 / 11:44 EDT
Proofpoint
Directory referenceCatalog entry; endpoint not checked in this build
www.proofpoint.com
Proofpoint News Feed
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 10 entries at check time
Protos
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 10 entries at check time
protos.com
Pulsedive
Directory referenceCatalog entry; endpoint not checked in this build
blog.pulsedive.com
Pulsedive
Directory referenceCatalog entry; endpoint not checked in this build
pulsedive.com
PyIOCe
Directory referenceCatalog entry; endpoint not checked in this build
github.com
Pyramid of Pain
Directory referenceCatalog entry; endpoint not checked in this build
rvasec.com
QiAnXin XLab
Directory referenceCatalog entry; endpoint not checked in this build
blog.xlab.qianxin.com
QRadio
Directory referenceCatalog entry; endpoint not checked in this build
github.com
Qualys Blog
Directory referenceCatalog entry; endpoint not checked in this build
blog.qualys.com
Raghavti Research
Directory referenceCatalog entry; endpoint not checked in this build
medium.com
Ransom-ISAC
Directory referenceCatalog entry; endpoint not checked in this build
ransom-isac.org
Ransomware Tracker
Directory referenceCatalog entry; endpoint not checked in this build
ransomwaretracker.abuse.ch
Rapid7 Blog
okRSS/Atom endpoint checked 2026-10-06; 20 entries at check time
blog.rapid7.com · INGESTED Oct 06 / 11:44 EDT
rastrea2r
Directory referenceCatalog entry; endpoint not checked in this build
github.com
RCE Security
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.rcesecurity.com
Real-time communications security on Communication Breakdown - Real-Time Communications Security
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.rtcsec.com
Recorded Future
Directory referenceCatalog entry; endpoint not checked in this build
www.recordedfuture.com
Red Canary
Directory referenceCatalog entry; endpoint not checked in this build
redcanary.com
Red Hat Security
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.redhat.com
Red Hat Security Advisories
Directory referenceCatalog entry; endpoint not checked in this build
access.redhat.com
Redline
Directory referenceCatalog entry; endpoint not checked in this build
www.fireeye.com
Rekt
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 7 entries at check time
www.rekt.news
Reliaquest
Directory referenceCatalog entry; endpoint not checked in this build
reliaquest.com
REScure Threat Intel Feed
Directory referenceCatalog entry; endpoint not checked in this build
rescure.fruxlabs.com
Resecurity
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 20 entries at check time
www.resecurity.com
Rest of World -
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 12 entries at check time
restofworld.org
RestorePrivacy
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 10 entries at check time
restoreprivacy.com
Return on Security
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 20 entries at check time
www.returnonsecurity.com
Reverse Engineering
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.reddit.com
ReversingLabs
Directory referenceCatalog entry; endpoint not checked in this build
www.reversinglabs.com
ReversingLabs Blog
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
blog.reversinglabs.com
Risky Business
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 100 entries at check time
risky.biz
RITA
Directory referenceCatalog entry; endpoint not checked in this build
github.com
RST Cloud
Directory referenceCatalog entry; endpoint not checked in this build
medium.com
RunZero
Directory referenceCatalog entry; endpoint not checked in this build
www.runzero.com
Rutgers Blacklisted IPs
Directory referenceCatalog entry; endpoint not checked in this build
report.cs.rutgers.edu
Rösti - Repackaged Öpen Source Threat Intelligence
Directory referenceMISP catalog entry; indicator list or event feed; open original source for access and usage conditions
rosti.64617461.xyz
SANS Blog
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.sans.org
SANS ICS Suspicious Domains
Directory referenceCatalog entry; endpoint not checked in this build
isc.sans.edu
SANS Internet Storm Center
okRSS/Atom endpoint checked 2026-10-06; 10 entries at check time
isc.sans.edu · INGESTED Oct 06 / 11:44 EDT
SC Magazine feed for Policy
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.scmagazine.com
SC Magazine feed for Risk Management
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.scmagazine.com
SC Magazine feed for Strategy
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.scmagazine.com
SC Magazine feed for Threats
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.scmagazine.com
Schneier on Security
okRSS/Atom endpoint checked 2026-10-06; 10 entries at check time
www.schneier.com · INGESTED Oct 06 / 11:44 EDT
Scott Helme
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 15 entries at check time
scotthelme.co.uk
Scumblr
Directory referenceCatalog entry; endpoint not checked in this build
github.com
secretlint/secretlint releases
Pending first refreshRelease title and short release metadata only; downloaded software is not run
github.com
Secure Insights
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.axis.com
SecureList by Kaspersky
Directory referenceCatalog entry; endpoint not checked in this build
securelist.com
Secureworks Counter Threat Unit (CTU) Research
Pending first refreshEndpoint check 2026-10-06 failed; see owner diagnostics
www.secureworks.com
Security Affairs
Pending first refreshRSS/Atom endpoint checked 2026-10-06; 10 entries at check time
securityaffairs.co
Security Affairs
Directory referenceCatalog entry; endpoint not checked in this build
securityaffairs.co
Publisher articles remain at their original sources. Metadata and links are compiled from attributed registries; a directory entry is not a certification or a guarantee that its endpoint is available.
- Awesome Threat Intel Blogs · CC BY 4.0 · Adapted factual names, category and original blog URLs; feed-service subscription links excluded.
- Cyber-News public OPML · Named publisher URLs, normalized to HTTPS, deduplicated, filtered and classified.
- MISP default feeds · Source registry metadata only; indicator references distinguished from article ingestion.
- Awesome Threat Intelligence · Names and public URLs only; original descriptions excluded.
CC BY 4.0 license applies to adapted Awesome Threat Intel Blogs catalog metadata. Original publication terms apply to other sources.