TeleMessage, a company that makes a modified version of Signal that archives messages for government agencies, was hacked.
A hacker has breached and stolen customer data from TeleMessage, an obscure Israeli company that sells modified versions of Signal and other messaging apps to the U.S. government to archive messages, 404 Media has learned. The data stolen by the hacker contains the contents of some direct messages and group chats sent using its Signal clone, as well as modified versions of WhatsApp, Telegram, and WeChat. TeleMessage was recently the center of a wave of media coverage after Mike Waltz accidentally revealed he used the tool in a cabinet meeting with President Trump.
The hack shows that an app gathering messages of the highest ranking officials in the government—Waltz’s chats on the app include recipients that appear to be Marco Rubio, Tulsi Gabbard, and JD Vance—contained serious vulnerabilities that allowed a hacker to trivially access the archived chats of some people who used the same tool. The hacker has not obtained the messages of cabinet members, Waltz, and people he spoke to, but the hack shows that the archived chat logs are not end-to-end encrypted between the modified version of the messaging app and the ultimate archive destination controlled by the TeleMessage customer.
Verisource Services, an employee benefits administration service provider, has determined that a previously announced data breach was far worse than initially thought and has affected up to 4 million individuals. The Houston, Texas-based company detected a hacking incident on February 28, 2024, that disrupted access to some of its systems. Third-party cybersecurity and incident response experts were engaged to investigate the incident and determine the nature and scope of the unauthorized activity.
The forensic investigation confirmed hackers had access to its network and exfiltrated files on February 27, 2024. At the time of the initial announcement, Verisource Services said names, dates of birth, genders, and Social Security numbers had been stolen. The affected individuals included employees and dependents of clients who used its services, which include HR outsourcing, benefits enrollment, billing, and administrative services.
The data breach was initially reported as affecting 1,382 individuals, but as the investigation progressed, it became clear that the breach was worse than initially thought. In August 2024, the data breach was reported to the HHS’ Office for Civil Rights (OCR) as involving the protected health information of 112,726 individuals. The most recent notification to the Maine Attorney General indicates up to 4 million individuals have been affected, a sizeable increase from previous estimates. The OCR breach portal still lists the incident as affecting 112,726 patients and plan members of its HIPAA-regulated entity clients, although that total may well be updated in the coming days.
Verisource Services explained in the breach notice that the data review was not completed until April 17, 2025, almost 14 months after the security incident was detected. Verisource Services reported the security incident to the Federal Bureau of Investigation, and several additional security measures have been implemented to improve its security posture. Notification letters had previously been sent to some affected individuals; however, the bulk of the notification letters have only recently been mailed. Verisource Services said complimentary credit monitoring and identity theft protection services have been offered to the affected individuals, who will also be protected with a $1,000,000 identity theft insurance policy.
SK Telecom, South Korea’s largest telecom company, disclosed a data leak involving a malware infection.
SK Telecom is South Korea’s largest wireless carrier — it has tens of millions of subscribers and holds roughly half of the local market.
The company revealed on Tuesday in a Korean-language statement posted on its website that it detected an intrusion on April 19. An investigation showed that the attackers deployed malware and managed to obtain personal information belonging to customers.
Following the incident, SK Telecom is offering customers a free SIM protection service designed to prevent SIM swapping, which suggests that the leaked data could be leveraged for such activities.
MTN Group said an “unknown third-party has claimed to have accessed data linked” to parts of its system and that the incident “resulted in unauthorised access to personal information of some MTN customers in certain markets.”
A surveillance tool meant to keep tabs on employees is leaking millions of real-time screenshots onto the open web.
Your boss watching your screen isn't the end of the story. Everyone else might be watching, too. Researchers at Cybernews have uncovered a major privacy breach involving WorkComposer, a workplace surveillance app used by over 200,000 people across countless companies.
The app, designed to track productivity by logging activity and snapping regular screenshots of employees’ screens, left over 21 million images exposed in an unsecured Amazon S3 bucket, broadcasting how workers go about their day frame by frame.
Thousands of students, teachers and administrators had information stolen from the Baltimore City Public Schools system during a ransomware attack in February.
Medical testing services provider Laboratory Services Cooperative (LSC) is notifying 1.6 million individuals that their personal information was stolen in an October 2024 data breach.
As part of the cyberattack, which was identified on October 27, a threat actor accessed LSC’s network and accessed and exfiltrated certain files containing patient and employee information.
The hackers who posted the documents on Telegram said the attack was in response to alleged Moroccan 'harassment' of Algeria on social media platforms, pledging additional cyberattacks if Algerian sites were targeted.
Algerian hackers leak sensitive data from Morocco's CNSS and Ministry of Employment. Tensions between Algeria and Morocco are spilling over into the realm of cyber warfare. The Algerian hacker group JabaRoot DZ has claimed responsibility for an unprecedented series of intrusions into the computer systems of several
Targets of the cyberattacks include electronics and home appliances store Boulanger and the retailer Cultura.
Just days after reporting on the Samsung Tickets data breach, another massive leak has surfaced, this time targeting Royal Mail Group, a British institution with over 500 years of history.
On April 2, 2025, a threat actor known as “GHNA” posted on BreachForums, announcing the release of 144GB of data stolen from Royal Mail Group. The breach, once again facilitated through Spectos, a third-party service provider, exposes personally identifiable information (PII) of customers, confidential documents, internal Zoom meeting video recordings, delivery location datasets, a WordPress SQL database for mailagents.uk, Mailchimp mailing lists, and more.
Oracle has finally acknowledged to some customers that attackers have stolen old client credentials after breaching a
Oracle denies it was breached after a threat actor claimed to be selling 6 million data records allegedly stolen from the company's Oracle Cloud federated SSO login servers
Zapier is notifying customers about a “security incident,” which involved an unauthorized user gaining access to the company’s code repositories and “certain custom information.”
Another little-known phone monitoring outfit has quietly amassed half a million customers, whose email addresses are now in Have I Been Pwned.
A travers la caisse de compensation de Swissmem, la faîtière de l’industrie des machines et des technologies, les données des employés de 180 firmes travaillant pour la Confédération et l’armée ont été mises en ligne. Une faille de sécurité majeure pour la Suisse
A bug in the Android and iPhone monitoring operations allows anyone to access private data exfiltrated from a victim's device.
Habib Mohammadi reports:
A group of unidentified hackers has breached the Taliban’s databases, leaking documents from 21 ministries and government agencies, some of which appear to be classified, according to reports circulating online.
The leaked files reportedly include documents from the Taliban-controlled ministries of finance, justice, foreign affairs, information and culture, telecommunications, and mining, as well as the Supreme Court and the Ministry for the Promotion of Virtue and Prevention of Vice.
The hackers have published hundreds of these documents on a website called “Talibleaks.”
After a ransomware attack on the state's health and social services system, Deloitte is giving Rhode Island $5 million to help cover expenses.
A publicly accessible database belonging to DeepSeek allowed full control over database operations, including the ability to access internal data. The exposure includes over a million lines of log streams with highly sensitive information.
