Security researchers have uncovered a misconfigured recruitment database leaking almost 26 million files, and security experts have warned it's a trend that's becoming far too common.
According to analysis from Cybernews, TalentHook, an online applicant tracking platform connecting HR departments with people looking for work, had left a misconfigured Azure Blob storage container open.
As a result, the resumes of millions of US citizens, including their full names, email addresses, phone numbers, education details, professional details, and employment history were exposed.
“The detailed personal information in the exposed resumes enables attackers to conduct highly targeted phishing campaigns," the Cybernews team said.
"Email addresses and phone numbers can be used in phishing emails, SMS scams, or fraudulent job offers, tricking individuals into revealing sensitive information such as ID scans or banking details."
The data could be a boon for cybercriminals looking to snare unsuspecting jobseekers, researchers have warned. In recent months, groups such as the North Korean state-sponsored Lazarus group have been specifically targeting jobseekers.
Research earlier this year showed the group has targeted victims using LinkedIn, for example, or by posing as recruiters and approaching targets via email and WhatsApp.
Sharpen up on storage configurations
Tim Mackey, head of software supply chain risk at Black Duck, said the incident shows the huge risks posed by easily overlooked misconfigurations and urged enterprises to sharpen up processes.
"Misconfigured systems, VMs, containers, micro-services, and data stores are nothing new,” he said.
"For example, the sample of the exposed data for this breach masks key identifiable information, such as email addresses and cell phone numbers, indicating that encryption of those elements wasn’t a priority or that an unsecured API was also part of the breach."
Dray Agha, senior manager of security operations at Huntress, echoed Mackey’s comments, noting that incidents like these are becoming increasingly common.
"Misconfigured cloud storage (like the unsecured Azure container in this case) remains an alarmingly common yet preventable issue, especially in sectors handling highly personal information," said Agha.
"Organizations must implement rigorous configuration audits, enforce least-privilege access controls, and conduct continuous monitoring to prevent such massive exposures of stored personal data."
The Cybernews researchers said they have contacted TalentHook, and advised the company to change the access controls to restrict public access and secure the container, and to update permissions to ensure that only authorized users or services have the necessary access.
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