chronology of NL
data breaches


A chronological list of severe data breaches in the Netherlands, in as far as they've become publicly known. If you have an entry to add to this list, please mail Karin Spaink, and make sure to include a reference to a news publication discussing the event. The idea to create such a list arose after three severe incidents in the course of four weeks; the example was taken from the Privacy Rights Clearinghouse Data Breaches list.

April 7, 2008 National Pop Institute unknown
what: The Dutch National Pop Institute managed to briefly publish telephone numbers, home addresses and mail adresses of Dutch pop musicians, managers, music industry VIPs and pop music journalists on its website. Amongst those affected are a number of famous people.
response: The data was removed. On its website, the NPI did not mention the incident.
references: Nu.nl, 8 april 2008
Jan. 18, 2008 Reader's Digest (magazine) 47.000 addressees
what: Reader's Digest has moved its 'You might become a winner' direct mails over to e-mail, and spammed 46.962 people. The mail contained a link to 'your personal data' and 'your unique code'. By changing the code in the url, the name and full postal address of all 47.000 spam recipients could be seen.
response: Reader's Digest CEO Margit de Koning said she was upset and would investigate the matter. She did not close the faulty website.
references: De Telegraaf, 18 jan 2008
Jan. 14, 2008 Planet (ISP) 2,5 million customers
what: One of the sysadmins of Planet, a Dutch ISP, stored a backup of all client data in a user account, as the result of a typing error (the user's account and the sysadmin's differed by only one letter). The user warned Planet two weeks ago, but Planet did not take any action. The file contains the user names, aliasses, IP addresses, encrypted passwords and used services of all private and business Planet accounts. Using hashmaster, the user could decrypt all passwords.
response: Planet ingored the matter until the story spread. It then asked the user to delete the file. Planet claims that it will change its back-up policy.
references: Tweakers, 14 jan 2008
Nu.nl, 14 jan 2008
Security.nl, 14 jan 2008
Dec. 14, 2007 CZ (health insurance) 55.000 people
what: CZ, a health insurance company, was informed that through sloppy security, the names, address, telephone number, social security number, bank information, date of birth and type of insurance of prospective clients who had filled in a web form for a quotation, were out in the open.
response: CZ didn't do anything. But when the news hit the media five days after they were informed, they closed that part of their web site and apologised.
references: AD, 14 dec 2007
Webwereld, 14 dec 2007
Dec. 12, 2007 Vecozo (health insurance) almost all insured people
what: Vecozo, an organisation set up by health insurance companies, has created a password and certificate protected web site where professionals can check whether patients are indeed insured. The newspaper Trouw discovered that currently, 80.000 people can access those data: not only health professionals, but also nurses, home carers and taxi drivers. In other words: 1 out of every 200 in NL has access to the site. One can access name, date of birth, address and social security number of those insured. It's possible to find the addresses of well-known people and of people who have secret addresses (for instance, battered women who've fled their husbands).
response: Vecozo declared that one could not access telephone numbers and refrained from all other comments.
references: Trouw, 12 dec 2007
Webwereld, 12 dec 2007
Nov. 20, 2007 Ministry of Defense several thousands marines
what: A 340 page list with names, home addresses, functions and ranks of marine personnel was inadvertedly put on a Defense web site. Among them were the names and addresses of marines working for defense intelligence. The list was an internal document and not meant for publication.
response: Defense removed the list after two days, but it lingered on several Defense operated servers for several days. After an assessment of the problem by prof. Chris Verhoef, the department finally took down the website in mid December.
references: AD, 20 nov 2007
Webwereld, 21 nov 2007
Automatiseringsgids, 6 december 2007
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