CYBERSECURITYTRACKER
Briefings

Stats

Two views: what is happening now (ransomware leak-site claims, new Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) entries, and news volume), and what the tracker's own history shows about how exploitation behaves.

Ransomware leak-site activity is based on unverified claims.

Jump to tracker history

Headline statistics

This site build contains 10,525 stories. It includes 2,624 vulnerability news stories.

255 leak-site claims have been posted this month, 2 CISA KEV catalog additions have been made this month, and 2 stories have been published today.

Monthly totals compare the month to date with the previous calendar month. Stories today compares the same calendar date one month earlier. No value is projected.

Current state

Ransomware leak-site activity for month to date through 2026-11-06 02:47 UTC is based on unverified claims. This view also includes new CISA Known Exploited Vulnerabilities (KEV) additions for month to date through 2026-11-06 02:47 UTC and story volume for 2026-10-07 through 2026-11-06 UTC.

7 further claims carry no date and are not shown in the monthly bars.

Leak-site claims by groupMonth to date through 2026-11-06 02:47 UTC
  • 01N0n30
  • 02The Gentlemen26
  • 03Soul25
  • 04Medusalocker17
  • 05Qilin15
  • 06Akira12
  • 07Brain Cipher11
  • 08Braincipher11
  • 09Safepay9
  • 10Orova7
  • 11Leakeddata6
  • 12Everstake6
Data coverage · 2026-11-01 through 2026-11-06 (month to date) · Showing 12 of 47 series, representing 68.6% of all dated, non-excluded ransomware claims in the stated month.

Window: 2026-11-01 through 2026-11-06 (month to date)

Coverage: Showing 12 of 47 series, representing 68.6% of all dated, non-excluded ransomware claims in the stated month.

Download complete numbers (JSON)
Claims by sectorMonth to date through 2026-11-06 02:47 UTC
  • Manufacturing42
  • Healthcare29
  • Technology28
  • Retail22
  • Business & Professional Services20
  • Financial Services13
  • Construction & Engineering9
  • Education9
  • Unclassified24

Unclassified: sector classification is pending, the available evidence did not support a confident sector, or the source never states one.

Data coverage · 2026-11-01 through 2026-11-06 (month to date) · Showing 9 of 23 series, representing 76.9% of all dated, non-excluded ransomware claims in the stated month.

Window: 2026-11-01 through 2026-11-06 (month to date)

Coverage: Showing 9 of 23 series, representing 76.9% of all dated, non-excluded ransomware claims in the stated month.

Download complete numbers (JSON)
Claims by month, year over year

11,434 claims across the 10 complete months both years have, versus 7,050 in 2025 (up 62%).

Not yet reached05001,0001,5002,000JanFebMarAprMayJunJulAugSepOctNovDec2026: 9052025: 6952026: 9932025: 1,0042026: 1,2212025: 8132026: 1,0622025: 6652026: 1,0002025: 5012026: 1,0262025: 5212026: 1,1052025: 6222026: 1,5182025: 5502026: 1,2332025: 6542026: 1,3712025: 1,0252026: 2552025: 773
Ransomware and extortion leak-site claims by month, 2026 against 2025, unverified. A blank-reading cell means no dated claim was recorded that month, never a measured zero.
Month20262025
January905695
February9931,004
March1,221813
April1,062665
May1,000501
June1,026521
July1,105622
August1,518550
September1,233654
October1,3711,025
November (month to date)255 (month to date)773
DecemberNot yet reached1,006
Group movers, rolling 7 days

Dated leak-site claims this tracker collected per group for 2026-10-30 through 2026-11-05, Coordinated Universal Time (UTC), compared with 2026-10-23 through 2026-10-29.

How these are counted

The last column counts claims dated in the 24 hours before the data export; a claim stored with a date but no time counts when that date is today or yesterday. Claims are unverified, claims without a disclosure date are left out of every column, and "unknown" collects claims with no attributed group.

GroupClaims, latest 7 daysPrior 7 daysChangeLast 24 hours
The Gentlemen3854Down 30%1
N0n2918Up 61%10
Qilin2742Down 36%2
Soul250Up from none in the prior 7 days0
Safepay189+9 from 90
Medusalocker170Up from none in the prior 7 days0
Akira156+9 from 64
Brain Cipher110Up from none in the prior 7 days0
Braincipher110Up from none in the prior 7 days0
Leakeddata107+3 from 72

Showing 10 of 65 groups with a dated claim in these windows, ordered by claims in the latest 7 days, so groups that went quiet sort last. Download the data (JSON).

Sector movers, rolling 7 days

Dated leak-site claims this tracker collected per sector for 2026-10-30 through 2026-11-05, Coordinated Universal Time (UTC), compared with 2026-10-23 through 2026-10-29.

How these are counted

The last column counts claims dated in the 24 hours before the data export; a row stored with a date but no time counts when that date is today or yesterday. Claims are unverified, claims without a disclosure date are left out of every column, and "Unclassified" collects rows whose sector this tracker has not matched to its sector list, including rows whose source never states one.

SectorClaims, latest 7 daysPrior 7 daysChangeLast 24 hours
Manufacturing5337Up 43%4
Technology3428Up 21%7
Healthcare3435Down 3%1
Business & Professional Services3324Up 38%1
Retail2617Up 53%6
Education1714Up 21%2
Financial Services1517Down 12%2
Construction & Engineering1521Down 29%0
Legal1212No change1
Unclassified4235Up 20%2

Showing 10 of 24 sectors with a dated claim in these windows, ordered by claims in the latest 7 days, so sectors that went quiet sort last, except Unclassified, which is always last. Download the data (JSON).

CISA KEV additions by month2 additions, month to date through 2026-11-06 02:47 UTC
  • 2026-112
  • 2026-1036
  • 2026-0943
  • 2026-0831
  • 2026-0726
  • 2026-0623
  • 2026-0521
  • 2026-0431
  • 2026-0326
  • 2026-0228
  • 2026-0117
  • 2025-1220
Data coverage · latest 12 observed addition months, 2025-12 through 2026-11; complete stored source history begins 2021-11 · Showing 12 of 61 months, representing 17.2% of all CISA KEV entries with a stored addition month.

Window: latest 12 observed addition months, 2025-12 through 2026-11; complete stored source history begins 2021-11

Coverage: Showing 12 of 61 months, representing 17.2% of all CISA KEV entries with a stored addition month.

Download complete numbers (JSON)
Story volumepeak 107/day, 2026-10-07 through 2026-11-06 UTC
Daily story volume grouped by UTC calendar day.050100150891072
2026-10-072026-11-06
Data coverage · trailing 30 × 24 hours ending 2026-11-06; grouped by UTC date. Complete stored item history begins 2014-01-24.

Window: trailing 30 × 24 hours ending 2026-11-06; grouped by UTC date. Complete stored item history begins 2014-01-24.

Coverage: Showing 1 of 1 series, representing 100.0% of all stored items dated inside the trailing window.

Download complete numbers (JSON)

Ransomware claim data is unverified: RansomLook (CC BY 4.0), with ransomware.live as a failover, credited and linked as its terms require (Source: Ransomware.live).

What the tracker's history shows

The tracker's history asks one question: how exploitation behaves. Each of its 8 parts use a committed query with its sample size, date range, and sources stated. A part below the minimum sample size is left out, and none of this is model output.

  1. Severity does not predict exploitation

    Many Common Vulnerabilities and Exposures (CVE) records attackers are actively exploiting carry only a Medium Common Vulnerability Scoring System (CVSS) severity, so a triage on severity alone would deprioritise them.

    18.4%
    1,063 of 5,781 known-exploited CVEs with a known CVSS severity carry only Medium
    Data coverage · point-in-time aggregate over the stored corpus as of 2026-11-06

    Window: point-in-time aggregate over the stored corpus as of 2026-11-06

    Coverage: Showing 1 of 1 series, representing 100.0% of the complete eligible population stated by this finding.

    Download complete numbers (JSON)

    18.4% of known-exploited CVEs with a known CVSS severity (1063 of 5781) carry only a Medium CVSS severity, so severity alone would under-prioritise them.

    Sample: 5,781 CVEs · sources: CISA KEV, VulnCheck KEV, ENISA, NVD CVSS

  2. Time from disclosure to exploitation

    Once a CVE record publishes, the gap before it is listed as actively exploited is short. A catalog listing lags the first real attack, so the patch-ahead window a defender actually had was shorter still.

    37.8%
    2,148 of 5,682 known-exploited CVEs were listed as exploited within 7 days of CVE publication (median gap 80 days; 33.6% on or before the day the record published)
    Data coverage · 1997-07-01 to 2026-11-05

    Window: 1997-07-01 to 2026-11-05

    Coverage: Showing 1 of 1 series, representing 100.0% of the complete eligible population stated by this finding.

    Download complete numbers (JSON)

    Across 5682 known-exploited CVEs with both dates, the median gap from CVE publication to the first exploited-catalog listing is 80 days. 2148 (37.8%) were listed within 7 days of publication, and 1908 (33.6%) on or before the day the CVE record itself published. A catalog listing lags first in-the-wild use, so the real warning time was shorter.

    Sample: 5,682 CVEs · 1997-07-01 to 2026-11-05 · sources: NVD, CVEList, CISA KEV, VulnCheck KEV, ENISA

  3. Which source lists a CVE first

    Across these vulnerability sources, one usually lists a CVE before the others; the lead time is how much warning that source buys you.

    CVE published before CISA KEV listing (NVD publication)
    233 days
    CVE published before VulnCheck KEV listing (NVD publication)
    80 days
    VulnCheck KEV leads CISA KEV
    13 days
    ENISA and CISA KEV: same day
    same day
    Data coverage · source-pair event dates stated on each complete series; aggregate generated 2026-11-06

    Window: source-pair event dates stated on each complete series; aggregate generated 2026-11-06

    Coverage: Showing 4 of 4 qualifying series, representing 100.0% of all pairwise observations in source pairs that cleared the sample floor.

    Download complete numbers (JSON)

    The median EPSS score on file just before CISA added these CVEs to KEV was 1%. Counted only where a snapshot exists within the seven days before the listing; beyond the 90-day daily retention that is a weekly snapshot, so the score can be up to seven days older than the listing.

    Sample: 372 CVEs · 2024-11-12 to 2026-11-04 · sources: EPSS, CISA KEV

    10,981 pairwise observations across 4 source pairs (a CVE can appear in more than one pair, so this is not a distinct-CVE count) · sources: VulnCheck KEV, CISA KEV, NVD publication, ENISA

  4. Attacker techniques

    A handful of ATT&CK techniques account for most exploited CVEs, so detections aimed at them cover the most ground.

    • T1190 Exploit Public-Facing Application154
    • T1068 Exploitation for Privilege Escalation40
    • T1078 Valid Accounts34
    • T1203 Exploitation for Client Execution32
    • T1204.002 Malicious File31
    Data coverage · point-in-time aggregate over the stored corpus as of 2026-11-06 · Showing 5 of 46 series, representing 63.3% of all stored distinct CVE-to-exploitation-technique mappings.

    Window: point-in-time aggregate over the stored corpus as of 2026-11-06

    Coverage: Showing 5 of 46 series, representing 63.3% of all stored distinct CVE-to-exploitation-technique mappings.

    Download complete numbers (JSON)

    Among exploited CVEs with a technique mapping, the most common exploitation techniques are: T1190 (Exploit Public-Facing Application) on 154 CVEs, T1068 (Exploitation for Privilege Escalation) on 40 CVEs, T1078 (Valid Accounts) on 34 CVEs.

    Sample: 291 CVEs · sources: MITRE Engenuity CTID KEV mappings, MITRE ATT&CK

  5. Where exploitation concentrates

    Known exploitation is not spread evenly. The shares below state how much of it sits with a few vendors, and, where the data clears the sample floor, on internet-facing edge products and in known ransomware use.

    • Microsoft701
    • Apple155
    • Adobe151
    • Cisco139
    • Apache133
    Data coverage · point-in-time aggregate over the stored corpus as of 2026-11-06 · Showing 5 of 2007 series, representing 22.7% of known-exploited CVEs with a source-published vendor.

    Window: point-in-time aggregate over the stored corpus as of 2026-11-06

    Coverage: Showing 5 of 2007 series, representing 22.7% of known-exploited CVEs with a source-published vendor.

    Download complete numbers (JSON)

    The top 5 vendors account for 1279 of 5642 known-exploited CVEs with a source-published vendor (22.7%), led by Microsoft (701), Apple (155), Adobe (151). Vendor spellings are folded to one canonical name, so a vendor split across spellings is counted once; rows with no source-published vendor are excluded from the denominator.

    203 of 5644 known-exploited CVEs (3.6%) affect a product on the tracker's curated internet-facing crosswalk (firewalls, virtual private network gateways, and edge routers, the same list that gates the exposure axis). The crosswalk is deliberately small and conservative, so an unmatched CVE usually means the product is not curated, not that it is safe.

    Sample: 5,644 CVEs · sources: CISA KEV, VulnCheck KEV, ENISA, curated internet-facing crosswalk

    CISA flags 361 of 1768 CISA KEV entries with an ingested ransomware judgment (20.4%) as known ransomware campaign use. This is CISA's own published flag; 'Unknown' means CISA has not confirmed use, not that none exists.

    Sample: 1,768 CVEs · sources: CISA KEV

    Sample: 5,642 CVEs · sources: CISA KEV, VulnCheck KEV, ENISA, NVD

  6. Score thresholds: coverage and workload

    For the exploited CVEs the tracker holds pre-listing Exploit Prediction Scoring System (EPSS) history on, each row states how many an act-at-threshold policy would have flagged before the listing, and what share of the scored CVEs that policy marks for action at the latest stored scores.

    Read: a higher first bar is better, and a lower second bar is less work.

    EPSS at or above 0.01
    would have caught 46.5% of KEV entries before listing
    puts 35.3% of all scored CVEs on the action list
    EPSS at or above 0.05
    would have caught 34.1% of KEV entries before listing
    puts 14.1% of all scored CVEs on the action list
    EPSS at or above 0.1
    would have caught 30.1% of KEV entries before listing
    puts 8.9% of all scored CVEs on the action list
    EPSS at or above 0.2
    would have caught 24.7% of KEV entries before listing
    puts 5.6% of all scored CVEs on the action list
    EPSS at or above 0.5
    would have caught 18% of KEV entries before listing
    puts 2.8% of all scored CVEs on the action list
    CVSS 7.0 or higher (comparison)
    would have caught 86.6% of KEV entries before listing
    puts 94.4% of all CVSS-scored CVEs on the action list
    Data coverage · pre-listing sample 2024-11-12 to 2026-11-04; effort population at latest stored snapshot 2026-11-06. Stored EPSS history begins 2024-11-11; daily points retain 90 days and thin to weekly through 730 days.

    Window: pre-listing sample 2024-11-12 to 2026-11-04; effort population at latest stored snapshot 2026-11-06. Stored EPSS history begins 2024-11-11; daily points retain 90 days and thin to weekly through 730 days.

    Coverage: Showing 6 of 6 series, representing 100.0% of all configured threshold series; every row states its own CVE denominator.

    Download complete numbers (JSON)

    Across 372 CISA KEV CVEs with an EPSS score on file within the seven days before their listing date, acting at EPSS 0.1 or above would have flagged 30.1% before the listing while marking 8.9% of the 105787 snapshot-scored CVEs for action at the latest stored scores (2026-11-06). The pre-listing score is the last stored snapshot within the seven days before the listing day; beyond the daily retention window that is a weekly snapshot. The CVSS comparison row is measured over the 104873 CVEs with a stored CVSS score, at their current scores (a different denominator, stated on the row). EPSS model versions changed inside this window (v4 on 2025-03-17), shifting scores on the epoch day(s).

    Sample: 372 CVEs · 2024-11-12 to 2026-11-04 · sources: EPSS (FIRST.org), CISA KEV, NVD CVSS

  7. Products past end of life

    Some known-exploited CVEs affect products with versions already past end of life, where no patch is coming for those versions.

    399
    Known-exploited CVEs linked to lifecycle-mapped products with past-end-of-life versions. This is a product-level signal, not proof that each CVE's affected version is past end of life. Mapping coverage is partial: 399 CVEs, 6.9% of known-exploited CVEs, map to the crosswalk
    Data coverage · point-in-time aggregate over the stored corpus as of 2026-11-06

    Window: point-in-time aggregate over the stored corpus as of 2026-11-06

    Coverage: Showing 1 of 1 series, representing 100.0% of the complete eligible population stated by this finding.

    Download complete numbers (JSON)

    Sample: 399 CVEs · sources: endoflife.date, CISA KEV, VulnCheck KEV, ENISA

  8. What the data cannot show

    Most tracked CVEs carry no direct ATT&CK technique mapping, so the technique picture above is a floor, not the whole of what attackers do.

    0.2%
    419 of 170,236 tracked CVEs carry a direct MITRE Engenuity CTID technique mapping
    Data coverage · point-in-time aggregate over the stored corpus as of 2026-11-06

    Window: point-in-time aggregate over the stored corpus as of 2026-11-06

    Coverage: Showing 1 of 1 series, representing 100.0% of the complete eligible population stated by this finding.

    Download complete numbers (JSON)

    419 of 170236 tracked CVEs (0.2%) carry a MITRE Engenuity CTID technique mapping; the rest reach ATT&CK context only through an associated actor, if any.

    Sample: 170,236 CVEs · sources: MITRE Engenuity CTID KEV mappings

Glossary