Prolepsia forecastNumber

How many ransomware victims will ransomware.live record as posted on leak sites between 1 January and 31 March 2027?

As of 5 November 2026, Prolepsia’s median forecast is 3,380, with an 80% chance it falls between 2,435 and 4,730.

3,380median

Prolepsia’s forecast distributionHow likely each value is for: How many ransomware victims will ransomware.live record as posted on leak sites between 1 January and 31 March 2027?. Median: 3,380. 80% range: 2,435 to 4,730.
Prolepsia forecast made

How Prolepsia reasons

The report Prolepsia wrote with this forecast.

How forecasts are made · Track record

TL;DR

The forecast for January 1–March 31, 2027 is a median of 3,380 victim listings, with a 10th percentile of 2,435 victim listings and a 90th percentile of 4,730 victim listings. Recent activity supports an elevated count, but campaign timing and collection changes justify a broad range rather than a narrow extrapolation.

Key evidence

  • The closest historical baseline shows a higher recent level. Observation-date records totaled 2,361 in Q1 2026, 2,363 in Q2, and 3,042 in Q3. July–October 2026 contained 4,210 records, compared with 2,612 in the same period of 2025. This supports growth, although the quarter-to-quarter path is uneven.
  • Recent volume is not chiefly one Cl0p posting burst. The Gentlemen accounted for 538 July–October records, Qilin for 499, and Cl0p for 112. Activity therefore extends beyond one familiar mass-exploitation campaign. Such campaigns still matter: Check Point's Q1 2026 report identifies the earlier Cleo campaign as a major distortion of Q1 2025 comparisons.
  • Headline reports measure different things. Emsisoft reported 2,395 listings in Q1 2025 and 1,496 in Q2 using publication dates. Bridewell reported 2,889 Q3 2026 listings, with monthly charts filtered by attack date. Neither is interchangeable with the discovery-date target.
  • Coverage and posting practices also move the count. The official 2026 statistics page listed 89 newly added group entries. These can include newly monitored operators or rebrands, not just new criminal capacity.

Uncertainties

A large exploitation campaign or sustained bulk publication could push the outcome higher. Disruption of major groups, slower publication, or reduced collection coverage could push it lower. The recent increase is real in the observed records; its persistence into Q1 2027 remains unknown.

The historical series has not received a complete record-by-record audit and reflects a revisable database. Resolution depends on valid discovery timestamps and the specified April 15, 2027 snapshot. Separate records for the same organization count separately. The forecast assumes a valid resolving dataset; an unavailable dataset leads to annulment under the question's rules, not an estimated count.

Read the full report

TL;DR

The median forecast is 3,380 victim listings January 1–March 31, 2027. The 10th percentile is 2,435 victim listings January 1–March 31, 2027, and the 90th percentile is 4,730 victim listings January 1–March 31, 2027. Use the median as the central expectation and the broad interval to account for campaign shocks, changes in criminal publishing, and monitoring coverage.

Context

As of November 5, 2026, ransomware.live observations show an elevated level of public victim claims. The question concerns the next first quarter, not attacks already observed. The target is the number of distinct records discovered from January 1 through March 31, 2027, in UTC, present in the specified April 15, 2027 database snapshot.

This is a measure of public listings, not unique organizations or independently verified breaches. Separate entries for the same organization count separately when they remain distinct records. Discovery date controls inclusion; attack date and leak-publication date do not. The resolution source is ransomware.live, with complete record-level counts taking precedence over inconsistent summaries under the question's rules.

Evidence

The historical backbone is the observation-date record series available on the forecast date. It covers 46 complete months from January 2023 through October 2026. The quarterly history shows both a rising level and large reversals. Growth has not followed a smooth path.

Year Q1 records Q2 records Q3 records Q4 records
2023 805 1,272 1,822 1,430
2024 1,110 1,749 1,326 1,926
2025 2,386 1,666 1,744 2,507
2026 2,361 2,363 3,042 Incomplete

This history supports two conclusions. First, recent activity is high relative to earlier years. Second, a high quarter does not establish a lasting growth rate. Q1 2026 was slightly below Q1 2025. Q3 2024 was below Q2 2024. The forecast therefore recognizes the higher recent level without treating uninterrupted growth as a fact.

The latest complete monthly observations provide a closer view of that level:

Month Observation-date records
July 2026 952
August 2026 1,209
September 2026 881
October 2026 1,168

Together, these months contain 4,210 records over 123 days. The corresponding July–October 2025 total was 2,612. That is strong evidence of a higher recent pace. It is also a reminder to distinguish a broad increase from a straight-line trend: September fell after August, and October rose again. The partial November 1–4 observation contained 154 records, but four days do not establish a quarterly direction.

The saved median reflects continued elevated activity with some further growth. The wide interval reflects the historical variability around that direction. There is no clear basis for treating Q1 as reliably stronger or weaker than the preceding quarter. The available year transitions are too few and too affected by campaigns to establish a stable seasonal rule.

Published reports corroborate the scale of activity, but their totals cannot be spliced into this history. Emsisoft's Summer 2025 analysis reported approximately 2,395 ransomware.live listings for Q1 2025 and 1,496 for Q2 2025. It explicitly used publication dates. The observation-date history instead contains 2,386 and 1,666. Different dates and database vintages prevent a simple reconciliation.

Check Point's Q1 2026 report counted 2,122 postings through its own monitoring, comprising 732 in January, 684 in February, and 706 in March. This supports the general scale, but it is not a ransomware.live discovery-date count. Its account of roughly 390 Cl0p victims associated with the Q1 2025 mass-exploitation burst is more useful as evidence of campaign-driven volatility.

Bridewell's Q3 2026 analysis reported 2,889 listings across 111 groups. Its attack-date-filtered monthly chart showed 970 in July, 1,064 in August, and 855 in September. Those figures differ from the observation-date history above. The report supports the conclusion that activity was elevated, but its headline total does not replace the target-aligned baseline.

The composition of recent activity also matters. July–October records included 538 attributed to The Gentlemen, 499 to Qilin, and 112 to Cl0p. The first two together accounted for about 24.6% of the total; Cl0p accounted for about 3%. The higher level was therefore not predominantly a single Cl0p burst. That supports persistence more than a one-campaign explanation would, while leaving room for other concentrated posting events.

One such event involves N0n. A HackerFeeds publication-date report recorded 18 N0n listings in September and 154 in October, within an October total of 1,127. The observation-date October count attributed 150 records to N0n. The difference in counting basis matters, but both show that an unusually active publisher contributed to October's strength. The official N0n page also showed a concentrated October 12 maritime and logistics batch and continuing November postings. This argues against assuming that every established group accelerated equally.

Access pipelines offer a weaker signal of persistence. A July 23, 2026 Group-IB report described approximately 14,700 pre-compromised FortiGate devices available to The Gentlemen's affiliates. An October 21, 2026 Group-IB/NyxLab investigation found more than 70,000 exposed credential records in the k0t campaign and victim overlap with Qilin and The Gentlemen. Direct affiliation remained unconfirmed, and many observed compromises dated to February–June 2026. These findings support continuing access to potential targets. They do not translate into equivalent numbers of organizations or future listings.

Finally, collection itself can expand. The official 2026 statistics page listed 89 newly added group entries, including N0n added on September 18. New entries can represent newly monitored operators or rebrands rather than new criminal capacity. They still matter because this question measures records collected, not a fixed universe of attackers.

What's non-obvious

The date field is part of the outcome, not a minor reporting detail. A listing published in December but discovered in January belongs in this forecast's quarter. A March publication first discovered in April does not. This means that differences between published reports can be legitimate rather than errors. Averaging their headline totals would blur the very distinction the question asks us to preserve.

The second less obvious point is that listing growth and growth in unique victims are different claims. New monitoring, batch releases, and separate entries by different groups can raise the count without an equivalent increase in unique organizations. Apparent placeholder and exposure pairs on the N0n page illustrate the uncertainty, but their record identities were not established. No independent organization-level deduplication is justified. These effects are part of the forecast target, not noise to remove.

Uncertainties

The largest uncertainty is whether the elevated late-2026 pace persists. Multiple active groups support that interpretation. Actor-specific posting surges argue against extrapolating every recent increase. A large exploitation campaign could raise the outcome sharply; effective disruption, migration between groups, or reduced public posting could lower it. The saved interval retains both possibilities.

The historical evidence also has limits. The series reflects the database available on the forecast date, not immutable snapshots of every earlier period. Corrections, deletions, mergers, and changes in discovery timestamps can alter historical totals. Sample records supported the interpretation of observation dates as discovery dates, but the entire historical record set was not independently audited. A complete identifier-level reconciliation would strengthen confidence in the baseline and explain more of the differences between reports.

Monitoring and publication practices remain uncertain. More group entries do not establish proportionate growth in listings. Device inventories and credential exposures do not establish a schedule of future extortion claims. Group-level records, documented coverage changes, and evidence that bulk campaigns are reaching publication would help distinguish persistent growth from temporary bursts.

The April 15, 2027 snapshot fixes the resolving count. Records removed or merged before that snapshot do not remain separately countable unless they survive as distinct entries. The forecast assumes a complete, verifiable resolving dataset. If the specified evidence cannot be obtained within the question's allowed process, the result is annulment rather than a substitute estimate from another tracker.

Forecast history

How Prolepsia’s forecast has movedOne forecast so far: 3,380 on 5 Nov 2026.
DateForecast
Median 3,380, 80% range 2,435 to 4,730

Sources Prolepsia read

  1. ransomware.livewww.ransomware.live
  2. https://www.emsisoft.com/en/blog/46903/summer-2025-by-the-numbers-ransomware-statistics/www.emsisoft.com
  3. https://research.checkpoint.com/2026/the-state-of-ransomware-q1-2026/research.checkpoint.com
  4. https://www.bridewell.com/insights/blogs/detail/the-state-of-ransomware-q3-2026www.bridewell.com
  5. https://hackerfeeds.com/ransomware/reports/2026-10hackerfeeds.com
  6. Ransomware in 2026: Same Business, New Rules | Group-IB Blogwww.group-ib.com
  7. https://github.com/JMousqueton/ransomware.livegithub.com

The question

This question asks how many ransomware and data-extortion victim listings ransomware.live will record worldwide during the first quarter of 2027, covering January 1 through March 31, 2027, inclusive. The outcome is the total number of victim records in ransomware.live whose discovery timestamps fall within this period, measured in Coordinated Universal Time (UTC), using the database as it stands on April 15, 2027. Ransomware.live monitors criminal ransomware and extortion groups' data-leak sites and records organizations publicly identified as victims. These listings represent claims made by threat actors, not necessarily independently verified ransomware attacks or confirmed data breaches. Each qualifying victim listing is counted as one record, including when the same organization is listed separately by different groups. The question measures publicly disclosed victim listings rather than the total number of ransomware attacks or unique organizations affected. Historical data provide a useful baseline. Emsisoft reported that ransomware.live recorded approximately 2,395 victim listings in Q1 2025 and 1,496 in Q2 2025. Check Point Research independently counted 2,122 data-leak-site victim postings in Q1 2026, although its monitoring methodology may differ from ransomware.live. More recently, Bridewell's Q3 2026 ransomware analysis reported 2,889 victim postings recorded by ransomware.live across 111 active ransomware and extortion groups, averaging 963 per month. These observations indicate substantial quarterly variation and an upward trend in reported victim postings through 2026. They support a relatively broad forecasting range for Q1 2027, while allowing for unusual mass-exploitation campaigns or disruptions to criminal operations. Historical sources include Emsisoft's Summer 2025 ransomware statistics (https://www.emsisoft.com/en/blog/46903/summer-2025-by-the-numbers-ransomware-statistics/), Check Point Research's Q1 2026 report (https://research.checkpoint.com/2026/the-state-of-ransomware-q1-2026/), and Bridewell's Q3 2026 analysis (https://www.bridewell.com/insights/blogs/detail/the-state-of-ransomware-q3-2026).

How it resolves

The question resolves to the integer number of qualifying victim records in ransomware.live with a discovered timestamp from 2027-01-01T00:00:00Z inclusive to 2027-04-01T00:00:00Z exclusive, as recorded in a snapshot of the database taken on April 15, 2027. The primary resolution source is ransomware.live, using its official statistics pages or API at https://www.ransomware.live/ and https://api.ransomware.live/. The preferred method is to retrieve the complete victim-record dataset for January, February, and March 2027, filter by the discovered timestamp in UTC, and count the qualifying records. If the official API provides a documented discovery-date filter and an associated total count, that count may be used after confirming that it covers the complete interval and applies no additional filters. Otherwise, retrieve all pages of results and count qualifying records by their unique record identifiers. Each distinct ransomware.live victim record counts once, regardless of whether the same organization appears in other records. Records attributed to different criminal groups count separately if ransomware.live maintains them as separate victim entries. Records with discovery timestamps outside the specified interval are excluded, even if their underlying attacks or original leak-site publications occurred during Q1 2027. Records first added after March 31 but assigned discovery timestamps within Q1 2027 are included if present in the April 15 snapshot. If ransomware.live's monthly statistics use the same discovery-date definition and record-counting method, the sum of the published January, February, and March 2027 counts is acceptable. Where official summary counts and independently computed API counts differ, the API record-level count takes precedence, provided it is complete and its timestamps are reliable. Data should be retrieved on April 15, 2027, using UTC as the reporting timezone, and the retrieval timestamp, source, filters, and resulting count should be documented. Subsequent database revisions do not change the outcome. If ransomware.live is temporarily inaccessible on April 15, resolution may be delayed until April 30, 2027, but only an archived April 15 snapshot or an official historical snapshot that unambiguously reproduces the database's April 15 state may be used. If such a snapshot is unavailable, the latest successfully captured official dataset from April 1 through April 15 may be used, provided it contains complete Q1 discovery-date coverage. A contemporaneous third-party archive reproducing ransomware.live's underlying records may be used if its provenance, completeness, and consistency with the specified methodology can be established. An independent leak-site tracker's count must not be substituted because differences in coverage and methodology would change the forecast target. If no sufficiently complete and verifiable ransomware.live-derived dataset can be obtained by April 30, 2027, the question is annulled rather than assigned an estimated value.

Fine print

The reporting period contains 90 calendar days, from January 1 through March 31, 2027. The unit of measurement is ransomware.live victim records, not unique victim organizations, individuals affected, confirmed breaches, ransom payments, or incidents occurring during the quarter. The discovered timestamp determines inclusion; attackdate, published, and similar fields must not be substituted unless ransomware.live explicitly documents that the replacement field has the same meaning as discovered. In particular, a victim posted on a criminal leak site in December 2026 but discovered by ransomware.live in January 2027 is included, while a victim posted in March 2027 but first discovered in April 2027 is excluded. Records lacking a valid discovery timestamp are excluded unless an official monthly aggregate demonstrably includes them under the same discovery-date methodology. Records that ransomware.live has removed or merged before the April 15 snapshot are not counted separately unless they remain distinct entries in that snapshot. No independent deduplication of organizations should be performed beyond removing duplicate API responses for the same record identifier. The count includes all countries, industries, and ransomware or data-extortion groups monitored by ransomware.live, without geographic or sectoral filtering. Changes in the number of monitored groups, collection methods, and publication practices are part of the forecasted outcome. If ransomware.live changes its API structure or statistics presentation, the closest official equivalent preserving discovery-date filtering and record-level counting should be used. The numerical forecasting bounds are intended to encompass plausible outcomes, not to impose limits on the number of possible victim postings.