PlainSec reads 100+ cybersecurity sources around the clock and gives you the stories that matter.
1. How we build your briefing
PlainSec monitors 100+ curated cybersecurity sources and continuously ingests new reporting.
PlainSec synthesizes reporting from 100+ sources into a prioritized intelligence briefing using multi-source clustering, CVE enrichment, and editorial checks that keep every claim source-linked and useful for action.
The edition is not built once and left alone. Sources are read around the clock, and the web edition is re-ranked through the day as stories develop. One email goes out at 7:00, Monday to Friday.
2. Reading a briefing
Actively exploited vulnerabilities or incidents that need immediate action.
Notable developments across the threat landscape for the current cycle.
Lower-priority items worth awareness, without immediate action.
3. Story tiers
Red left border: Critical story that requires immediate triage, patching, or response.
Amber left border: Noteworthy multi-source development; review soon.
No left border: Awareness-level update with lower immediate urgency.
4. Source grades
Grade A (green): Primary sources such as vendor advisories, government agencies, and original research.
Grade B (gray): Established security publications with professional editorial standards.
Grade C (dim): Community channels and early-signal sources that should be verified independently.
5. Story context
Tactical helps patch/respond, Operational guides configuration/monitoring, and Strategic informs planning and budget.
Shows whether sources converge on key facts or report conflicting details that need extra verification.
Measures source coverage quality, from brief mentions to deep coverage with original findings.
6. The source timeline
Each timeline row is one source report shown in publish order.
Dots and grade badges show source quality at a glance, while the snippet captures what that source specifically contributed.
7. CISA remediation dates
CISA's Known Exploited Vulnerabilities catalog includes a remediation date for U.S. federal civilian agencies. PlainSec presents it as scoped policy context: binding for those agencies, and an urgency benchmark for everyone else.
The CISA date watch keeps those vulnerabilities visible after they stop being news. Dates are shown as upcoming or passed, never as your organization's deadline. On Pro, entries that affect your stack are marked.
8. CVE depth
Where a story names a CVE, the record travels with it: severity, EPSS probability, known-exploitation status, CISA's federal remediation date, the weakness class, and affected packages. Microsoft advisories carry their patch reference where one exists.
Pro connects that record to what you run. Your registered products are flagged on the story itself, with the fixed version where the vendor publishes one.
9. The feed
The briefing is the edited edition. The feed is everything else that landed, in publication order, carrying the same grades and context as the briefing stories.
Filter by topic, narrow to a tag such as a product, an actor, or a CVE, or filter the loaded stories by keyword. Free covers today. Pro widens the window to 48 hours, 7 days, or 30 days.
10. The audio briefing
Every edition has a spoken version: the same stories in the same order, read start to finish, for a commute or a walk.
Free includes the full audio briefing, with a weekly play limit. Pro removes the limit and reads your stack's stories first.
11. PlainSec in your AI tools
Pro connects PlainSec to Claude, ChatGPT, or anything else that speaks MCP. Ask for the briefing, look up a CVE, search by topic or tag, or ask what affects your stack.
The answers come from the same edition you would read on the site, with the sources attached, so your assistant works from reporting rather than recall. Search covers a 30-day window; editions themselves stay readable at their dated URLs.
12. Editions and languages
PlainSec publishes in English and Italian. The Italian edition is written in Italian rather than translated from the English one: both are composed from the same sources, under the same editorial rules.
Security terms stay in English in both editions, because that is how practitioners read them. Everything around them reads as its own language.