Cybersecurity Experts Warn Against Sharing Birthdays Online to Prevent Identity Fraud
“A date of birth alone is not particularly valuable to criminals, but combined with other information, such as names and phone numbers, it can help criminals commit identity fraud.” That warning from Jake Moore, an adviser for cybersecurity company ESET, arrives as retail databases face mounting scrutiny over the collection of personal identifiers during standard customer onboarding processes.
The Mechanics of Dark Web Identity Enrichment
Online account creation frequently requires birth dates for loyalty schemes, newsletters, and promotional competitions. A recent breach at online retailer Asos exposed customer dates of birth alongside other personal records. Stolen records end up on the dark web, where criminal syndicates piece them together with information pulled from social media profiles, public directories, and separate corporate leaks.
Serpil Hall, a security expert from Datos Insights, outlines the operational pipeline used by bad actors. The process typically begins when a retail breach provides a name, date of birth, email, and address. Supplementary data leaks then supply phone numbers and account credentials, while public social profiles fill in employment details and family relations. The result is an enriched identity profile that grants fraudsters greater confidence when matching records or impersonating victims to company help desks.
Retail Incentives Versus Consumer Exposure
Cybersecurity professionals advise consumers to restrict the personal data they surrender online. Alexandre François, an investigator for intelligence firm WhoisXML API, surveyed 14 retailers and found that eight requested a date of birth during the initial registration phase. Retailers retain these fields because exact ages assist with targeted marketing campaigns, leaving little commercial incentive for merchants to remove the collection requirement.
Practical Defenses for Online Shoppers
Consumers can mitigate exposure by leaving optional birth date fields blank or entering alternative placeholder dates on low-risk websites, according to ESET adviser Jake Moore. François notes that official entities such as banks, lenders, tax authorities, and government passport agencies are the only institutions that legitimately require a genuine date of birth checked against official records. Commercial retailers do not require verified birth dates for standard merchandise delivery.
Security specialists recommend maintaining a dedicated secondary email address exclusively for online retail transactions, allowing users to abandon compromised communication channels quickly following a corporate security breach. Consumers remain urged to treat unsolicited phone contacts with skepticism, regardless of how much personal verification data the caller possesses.