DataBreaches.Net

Menu
  • About
  • Breach Notification Laws
  • Privacy Policy
  • Transparency Report
Menu

Credit industry slow to protect customers from CreditMaster scam

Posted on July 25, 2009 by Dissent

Recent cases in which people have been charged with online fraud for allegedly making purchases with illegally obtained credit card numbers have shed light on the lack of effective measures taken to frustrate the CreditMaster scam used in these incidents, even though the credit card industry was already aware of its existence.

The industry is being urged to take steps to protect cardholders from the CreditMaster scam, in which credit card numbers can be deduced through simple manual calculations.

[…]

According to the Japan Credit Card Association, credit card numbers are basically set sequentially based on a specific protocol created by individual credit card companies.

The CreditMaster scam–which takes its name from a card-generation malware– allows existing credit card numbers to be identified by making calculations based on the number of the base card and excluding a specific set of numerals by which the credit card company can be identified.

“The calculations were very simple so I could [identify the card numbers] by manual calculation,” Asahi reportedly said.

Asahi identified 68 credit card numbers and the cards’ expiration dates based on 10 existing cards. She used the numbers to purchase TVs and other domestic appliances worth a total of 10 million yen on major Internet shopping sites.

Read more on Daily Yomiuri Online.

Category: Commentaries and AnalysesFinancial SectorID TheftNon-U.S.Other

Post navigation

← Germany adopts stricter data protection law
Brighton laptop stolen while IT engineer golfed →

Now more than ever

"Stand with Ukraine:" above raised hands. The illustration is in blue and yellow, the colors of Ukraine's flag.

Search

Browse by Categories

Recent Posts

  • New evidence links long-running hacking group to Indian government
  • Zaporizhzhia Cyber ​​Police Exposes Hacker Who Caused Millions in Losses to Victims by Mining Cryptocurrency
  • Germany fines Vodafone $51 million for privacy, security breaches
  • Google: Hackers target Salesforce accounts in data extortion attacks
  • The US Grid Attack Looming on the Horizon
  • US govt login portal could be one cyberattack away from collapse, say auditors
  • Two Men Sentenced to Prison for Aggravated Identity Theft and Computer Hacking Crimes
  • 100,000 UK taxpayer accounts hit in £47m phishing attack on HMRC
  • CISA Alert: Updated Guidance on Play Ransomware
  • Almost one year later, U.S. Dermatology Partners is still not being very transparent about their 2024 breach

No, You Can’t Buy a Post or an Interview

This site does not accept sponsored posts or link-back arrangements. Inquiries about either are ignored.

And despite what some trolls may try to claim: DataBreaches has never accepted even one dime to interview or report on anyone. Nor will DataBreaches ever pay anyone for data or to interview them.

Want to Get Our RSS Feed?

Grab it here:

https://databreaches.net/feed/

RSS Recent Posts on PogoWasRight.org

  • How the FBI Sought a Warrant to Search Instagram of Columbia Student Protesters
  • Germany fines Vodafone $51 million for privacy, security breaches
  • Malaysia enacts data sharing rules for public sector
  • U.S. Enacts Take It Down Act
  • 23andMe Bankruptcy Judge Ponders Trump Bill’s Injunction Impact
  • Hell No: The ODNI Wants to Make it Easier for the Government to Buy Your Data Without Warrant
  • US State Dept. says silence or anonymity on social media is suspicious

Have a News Tip?

Email: Tips[at]DataBreaches.net

Signal: +1 516-776-7756

Contact Me

Email: info[at]databreaches.net

Mastodon: Infosec.Exchange/@PogoWasRight

Signal: +1 516-776-7756

DMCA Concern: dmca[at]databreaches.net
© 2009 – 2025 DataBreaches.net and DataBreaches LLC. All rights reserved.