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CISA Known Exploited Vulnerabilities, NVD, CVE.org, CIRCL Vulnerability-Lookup, GitHub Advisory Database (CC BY 4.0), OSV (CC BY 4.0), RansomLook (CC BY 4.0, enriched by Black Shard), SEC EDGAR, HHS breach portal, Have I Been Pwned (CC BY 4.0), Texas Attorney General, California Attorney General, Delaware Department of Justice, Vermont Attorney General, GDELT Project, Cloudflare status, abuse.ch SSLBL (CC0), CISA ICS advisories, NCSC UK (OGL v3.0), CERT-EU (CC BY 4.0), NCSC New Zealand (CC BY 4.0), MISP galaxy (CC0), OAIC determinations (CC BY 4.0), abuse.ch Feodo Tracker (CC0), Spamhaus DROP (Spamhaus DROP terms), blocklist.de, CINS Army, CERT-FR (Licence Ouverte 2.0), Red Hat Security Data (CC BY 4.0), ENISA EUVD, Microsoft MSRC, JVN iPedia, FIRST EPSS, IODA, GeoNames (CC BY 4.0), Natural Earth, Wikidata, Regional Internet Registries (delegation statistics), Protomaps, OpenStreetMap contributors (ODbL), NASA GIBS. Items link to their sources, except leak-site claims, which are never linked. This product uses the NVD API but is not endorsed or certified by the NVD.

Built on open-source software under the MIT licence. Map data from Natural Earth, NASA GIBS, Protomaps and OpenStreetMap contributors.

© 2026 Black Shard Pty LtdABN 66 696 910 773

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Newly exploited

ExploitedMicrosoft OfficeCVE-2026-1241943d ago
ExploitedOpenwave Messaging Limited Webtop Media TranscoderCVE-2026-1117933d ago
ExploitedCisco BroadWorksCVE-2026-203203d ago
ExploitedBarracuda Networks Multiple ProductsCVE-2026-1115603d ago
ExploitedBarracuda Email Security Gateway (ESG)CVE-2026-1166063d ago
ExploitedGoogle ChromiumCVE-2026-1253503d ago
ExploitedGPUStackCVE-2026-1028954d ago
ExploitedOpenBSD OpenSSHCVE-2026-1231584d ago

Cyber attacks and data breaches, September 2026 · Black Shard

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September 2026

Monthly archive

Cyber incidents, September 2026

Nothing has been reported yet in September 2026.

Open the live map October 2026

0

Organisations named, September 2026

1 Sept30 Sept

Plus 58 breach notices filed with US regulators, counted apart.

Confirmed: 0; By the organisation or a regulator
Reported: 0; By the press
Claimed: 0; Only by the attackers

Updated 13 Nov 2026, 11:37 UTC, 31 of 36 sources answering. History from 13 Nov 2025.

Incidents in September 2026

Newest first

Breach notices58

Nothing with this status in the last 30 days.

Breach reports from the US Department of Health and Human Services Office for Civil Rights. Data security breach reports from the Texas Attorney General. Data security breach notices from the California Department of Justice. Data breach notices from the Delaware Department of Justice (data.delaware.gov). Security breach notices from the Vermont Attorney General.

Spotted an error? Report a correction. Is your organisation listed? Send us a statement.

Other months

November 2026450
October 2026752

Under attack? Call the incident line.

Black Shard's team can check your exposure, take a fix off your plate or step in on a live incident.

Talk to our team Breach response

24/7 incident line1800 370 270Call first, then work through the first-hour steps.

Black Shard builds and defends the systems organisations run on.

Talk to us Black Shard on LinkedIn, opens in a new tab

Threat map

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Am I affected?
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New CVEs
Australia
By country
By sector
Ransomware groups
Monthly archive
RSS feed

Black Shard

Platform
Jetstone
Services
Solutions
Why Black Shard
Resources
Company

24/7 incident line

1800 370 270 Experienced a breach? Start here.

Sources and licences

CISA Known Exploited Vulnerabilities, NVD, CVE.org, CIRCL Vulnerability-Lookup, GitHub Advisory Database (CC BY 4.0), OSV (CC BY 4.0), RansomLook (CC BY 4.0, enriched by Black Shard), SEC EDGAR, HHS breach portal, Have I Been Pwned (CC BY 4.0), Texas Attorney General, California Attorney General, Delaware Department of Justice, Vermont Attorney General, GDELT Project, Cloudflare status, abuse.ch SSLBL (CC0), CISA ICS advisories, NCSC UK (OGL v3.0), CERT-EU (CC BY 4.0), NCSC New Zealand (CC BY 4.0), MISP galaxy (CC0), OAIC determinations (CC BY 4.0), abuse.ch Feodo Tracker (CC0), Spamhaus DROP (Spamhaus DROP terms), blocklist.de, CINS Army, CERT-FR (Licence Ouverte 2.0), Red Hat Security Data (CC BY 4.0), ENISA EUVD, Microsoft MSRC, JVN iPedia, FIRST EPSS, IODA, GeoNames (CC BY 4.0), Natural Earth, Wikidata, Regional Internet Registries (delegation statistics), Protomaps, OpenStreetMap contributors (ODbL), NASA GIBS. Items link to their sources, except leak-site claims, which are never linked. This product uses the NVD API but is not endorsed or certified by the NVD.

Built on open-source software under the MIT licence. Map data from Natural Earth, NASA GIBS, Protomaps and OpenStreetMap contributors.

© 2026 Black Shard Pty LtdABN 66 696 910 773

Privacy
Cookies
Terms
Vulnerability disclosure

Live map
Am I affected?
Daily brief
New CVEs

Live map
Am I affected?
Daily brief
New CVEs

Newly exploited

ExploitedMicrosoft OfficeCVE-2026-1241944d ago
ExploitedOpenwave Messaging Limited Webtop Media TranscoderCVE-2026-1117934d ago
ExploitedCisco BroadWorksCVE-2026-203204d ago
ExploitedBarracuda Networks Multiple ProductsCVE-2026-1115604d ago
ExploitedBarracuda Email Security Gateway (ESG)CVE-2026-1166064d ago
ExploitedGoogle ChromiumCVE-2026-1253504d ago
ExploitedGPUStackCVE-2026-1028955d ago
ExploitedOpenBSD OpenSSHCVE-2026-1231585d ago