







In September 2026, the German political party Alternative für Deutschland (AfD) suffered a data breach which exposed 345k unique email addresses. The following month, hundreds of gigabytes of data containing hundreds of thousands of emails and attachments was published online, with searchable AI-generated summaries and downloadable original files. An analysis of the incident reported that the breach was detected as early as 9 September, with a subsequent intrusion occurring five days later. In its public statement, AfD attributed the breach to an attack on a hosting provider, identified in subsequent reporting as the party-owned Alternita Dienstleistungs GmbH.
Massive AfD data breach exposes illegally copied files
The “Alternative for Germany” party apparently suffered a data breach. Some 421,000 emails were published, offering a glimpse inside the party.

IDMerit data breach: 1 billion records of personal data exposed in KYC data leak
A massive global data leak linked to IDMerit has exposed 1 billion personal records, including national IDs and emails, across the US, Europe, and Asia.

Archived Fact-Checked Media — MediaVault
“If confirmed, this is telling: Russian data centres get hit, and online activity around AfD suddenly plummets. 📉 So much talk about German patriotism… then the connection from Russia goes down. 🤔🇷🇺 https://t.co/hEPJkIVtA3”
Have I Been Pwned: Check if your email address has been exposed in a data breach
Search tens of billions of breached records, monitor corporate domains via API, and get alerted when credentials are exposed. Trusted by security teams, MSSPs, and government agencies worldwide.

Data of 600,000 Gaza households exposed in WFP cyber-attack
With over 2 million people registered in Gaza, it may be the largest-known breach of humanitarian beneficiary data to date.

AfD data leak: Suspected perpetrators claim responsibility
In an interview with Zeit, two anonymous perpetrators claim responsibility for the cyberattack on the AfD, saying it was about transparency and justice.

LinkDrift: How Leaked Links Exposed Internal Files at Fortune 500 Companies
We followed leaked links from malware logs and public indexes to internal files at 19 Fortune 500 companies, still open without a login.

Dialog Claims It Was Hacked. A Misconfigured Website Left Its Members Exposed
The private events group, cofounded by Peter Thiel, says a “criminal” hacker is behind a breach that exposed members’ personal details. WIRED found no evidence a break-in was needed to access the files.

Unauthorized access, personal data leaks surge in Japan | NHK WORLD-JAPAN News
A series of cyberattacks have led to leaks of large amounts of personal data from companies across Japan. Experts say the misuse of AI may be contributing to the growing threat. As this new challenge emerges, how should companies, and society as a whole, respond?
Archived Fact-Checked Media — MediaVault
“There's a story going around: after the drone strikes on Yandex data centres, comments on AfD and MAGA accounts collapsed. We monitor 17,000+ politicians, media and civil society accounts in 30+ countries. 50,000+ posts a day. So we checked. We don't see it. 🧵 https://t.co/8quSNosqv0”
Discord users’ data was exposed in a breach at server bot Double Counter.
The server privacy bot says hackers copied about 12GB of data, including Discord usernames and user IDs, IP addresses, location data, and email addresses. The attackers also took control of the bot’s Discord token, posted links “in about 50 large servers,” and “used a stolen payment key to commit financial fraud on a separate account.” [Link: Double Counter — Security Incident Report (4 October 2026) | https://doublecounter.gg/blog/security-incident-october-2026 | Double Counter]

AU10TIX: records exposed security breach affecting major apps
An Israeli identity verification company suffered an attack that compromised the personal data of millions of users of popular apps.
Facebook-Cambridge Analytica: A timeline of the data hijacking scandal
Facebook is desperately trying to mend its damaged reputation following the continued fallout of a massive data scandal.

I’ve long been critical of the weak cybersecurity in Japan, but this is specifically about the series of data leaks circa September/October 2026 (hoping it won’t go on for longer). This is unfortunately such a huge I Told You So moment for me. My spreadsheet (which may or may not be up to date but is in English): drive.proton.me/urls/VJ0WNH1SHR#v9W2jUCoBQTX
Have I Been Pwned: AfD Data Breach

AfD data leak: Suspected perpetrators claim responsibility

Massive AfD data breach exposes illegally copied files

Facebook-Cambridge Analytica: A timeline of the data hijacking scandal

Facebook Data Privacy Scandal: A Cheat Sheet - TechRepublic

疑惑の選挙対策会社は フェイスブックのデータから 何を得ていたのか?

Facebook may stop the data leaks, but it’s too late: Cambridge Analytica’s models live on

One Response to the Cambridge Analytica Scandal: Block Facebook's

Watch The Great Hack | Netflix Official Site
サイバー対応特設サイト - 国家サイバー統括室
第374回 個人情報保護委員会 |個人情報保護委員会

2026年度の情報漏えい被害、2.6億人を超える

High-stakes standoff between GMO and hacker group escalates with first data leak

GMO、顧客にパソコン電源オフを要請 27日正午に攻撃との脅迫受け

サイバー攻撃、サイト経由型が急増 弱点探索にAI活用か―セキュリティー大手:時事ドットコム