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Topic

Data Breach Disclosure

The practice and legal duty of notifying affected individuals and regulators after a data breach, including how incidents are characterized and sized.

Current stories

leadershipConfirmed2 publishers

Asos traces its data breach to one employee fooled by a fake trusted contact

Asos said hackers obtained an employee's login by posing as a trusted contact, then reached customer names and contact details on third-party platforms. The shares fell on the hackers' app alert two days before Asos explained it. For a board, that puts staff checks and disclosure speed inside the same risk.

Reality

Evidence60
Adoption
Not scored
Hype gap+10
Incentives70
Confidence58
buildOne report1 publisher

A customer's call exposed the leak of 521 nimoca users' card numbers from a side web service

Nimoca Co. says an intruder took email addresses, card numbers and birth dates for 521 users of its online card-history service. The breach came to light when a rider phoned the call center about an email he did not recognise.

Publishers:dev.to

Reality

Evidence45
Adoption
Not scored
Hype gap+10
Incentives65
Confidence40
investOne report1 publisher

FTC chair Andrew Ferguson wants AI developers held liable for what their agents do

FTC Chair Andrew Ferguson said on September 25 that AI agents are tools and the developers who instruct them are liable for the harm they cause. Companies that run other firms' agents now have to work out whether giving the instructions makes them the developer he means.

Reality

Evidence38
Adoption
Not scored
Hype gap+20
Incentives
Not scored
Confidence35
securityConfirmed4 publishers

SickKids blames a third-party app for its breach, then declines to name it

The Toronto hospital says the flaw sits in software used by other organizations too. It has not said which software, which leaves those organizations nothing to act on.

Publishers:bleepingcomputer.com sickkids.ca therecord.media toronto.citynews.ca

Perspective Coverage

4 publishers
Builder
Builder 15%
Operator
Operator 73%
Investor
Investor 12%

Reality

Evidence50
Adoption
Not scored
Hype gap+5
Incentives60
Confidence60
securityOne report1 publisher

LMU Munich assumes an intruder retrieved enrollment records holding bank and insurance data

LMU Munich detected the intrusion on Wednesday and disclosed it on Saturday, and it still cannot say when the access began or how many of its more than 52,000 students are in the enrollment file.

Publishers:therecord.media

Reality

Evidence55
Adoption40
Hype gap−5
Incentives60
Confidence45
buildOne report1 publisher

An ICCID column is what makes the unverified Claro list worth acting on

A forum post on 13 September claimed 2,889,256 Claro Dominicana customer records, each carrying the serial number of the line's SIM. Nobody has verified it, and the SIM serial is the field that should drive the response.

Publishers:dev.to

Reality

Evidence22
Adoption
Not scored
Hype gap+14
Incentives25
Confidence40
investOne report1 publisher

Swiss Bitcoin Pay pulled its whole server fleet offline over five fields of customer data

The payment firm says its servers went dark on September 14 after an intruder probably reached internal systems, and that customer emails, IBANs, transaction histories and hashed passwords may have been exposed.

Reality

Evidence34
Adoption38
Hype gap+18
Incentives68
Confidence45
investOne report1 publisher

Revolut released passports and selfies to a request from a verified government domain

Revolut says its core systems were never touched, and that staff approved fraudulent information requests because the sender's domain was genuine and the email authentication valid. It is applying for a deposit-taking licence in Israel.

Reality

Evidence38
Adoption45
Hype gap+15
Incentives75
Confidence40
securityConfirmed6 publishers

IDScan confirms breach in noindexed notice, as reports peg leaked database at 153 million licenses

The company says it learned on or around September 1 that data in customer accounts on its cloud may have been copied, and its notice lists names and ID numbers but not the licence scans Nexus was selling.

Perspective Coverage

6 publishers
Builder
Builder 17%
Operator
Operator 52%
Investor
Investor 31%

Reality

Evidence74
Adoption62
Hype gap+14
Incentives71
Confidence70
investOne report1 publisher

Law-firm breach cases nearly doubled in the book of the firm that counts them

Greenberg Traurig says an intruder took client documents and posted them on the dark web. The doubling behind that story is nearly 60 law-firm matters inside BakerHostetler's 1,250-incident book for 2025.

Publishers:decrypt.co

Reality

Evidence52
Adoption63
Hype gap+22
Incentives62
Confidence55
investOne report1 publisher

Travala traces its copied production databases to one developer's unmanaged personal device

The late-August update stresses text-based fields and untouched seed phrases, while the earlier regulatory filings list passport numbers, dates of birth and two-factor details, and both descriptions are accurate at once.

Reality

Evidence42
Adoption32
Hype gap−20
Incentives72
Confidence45
securityOne report1 publisher

Oz Hair and Beauty says no cards were taken. What was taken is what scam calls run on.

The breach notice rules out credit card details and confirms names, mobile numbers, order totals and postcodes. The second list is the one that makes a refund-scam call work.

Reality

Evidence44
Adoption
Not scored
Hype gap−12
Incentives62
Confidence46
securityOne report1 publisher

678,000 French filers and one 9.4: the week's patch-and-notify work, with numbers attached

France's DGFiP confirmed tax and property data exposure for 678,000 filers while GitLab fixed an unauthenticated project-deletion bug. Both arrived with figures a team can act on.

Reality

Evidence48
Adoption42
Hype gap+12
Incentives44
Confidence52