On May 29, 2025, SentinelOne experienced a global service disruption affecting multiple customer-facing services. During this period, customer endpoints remained protected, but security teams were unable to access the management console and related services, which significantly impacted their ability to manage their security operations and access important data. We apologize for the disruption caused by this service interruption.
The root cause of the disruption was a software flaw in an infrastructure control system that removed critical network routes, causing widespread loss of network connectivity within the SentinelOne platform. It was not a security-related event. The majority of SentinelOne services experienced full or partial downtime due to this sudden loss of network connectivity to critical components in all regions.
We’d like to assure our commercial customers that their endpoints were protected throughout the duration of the service disruption and that no SentinelOne security data was lost during the event. Protected endpoint systems themselves did not experience downtime due to this incident. A core design principle of the SentinelOne architecture is to ensure protection and prevention capabilities continue uninterrupted without constant cloud connectivity or human dependency for detection and response – even in the case of service interruptions, of any kind, including events like this one.
Victoria’s Secret hit by outages as it battles security incident
Fashion retail giant Victoria’s Secret said it is addressing a “security incident,” as its website and online orders face ongoing disruption.
Victoria’s Secret posted the brief statement on its website Wednesday. The company’s outages began earlier on Monday, as users have reported not being able to access the Victoria’s Secret website.
“We immediately enacted our response protocols, third-party experts are engaged, and we took down our website and some in store services as a precaution,” a spokesperson for Victoria’s Secret said in response to TechCrunch’s inquiries. The spokesperson did not provide their name nor describe the nature of the cybersecurity incident.
“We are working to quickly and securely restore operations,” the spokesperson said. The company said its stores remain open.
Victoria’s Secret closed down 7% on the news of the security incident.
Dear Friends, Neighbors, and Valued Cellcom/Nsight Customers,
Over the past five days, many of you have been impacted by a service disruption — and I want to begin by saying something simple, and deeply meant: I’m here.
While I’ve been closely involved from the very beginning, this is the first time I’m writing to you directly. That wasn’t because I didn’t want to — it was because I truly believed we’d be past this quickly. I stayed focused on the fix, confident that we’d be able to restore service fast.
We’ve always believed in being present, open, and accountable to the people we serve. That’s what this letter is about.
We experienced a cyber incident. While this is unfortunate, it’s not something we were unprepared for. We have protocols and plans in place for exactly this kind of situation. From the start, we’ve followed those plans — including engaging outside cybersecurity experts, notifying the FBI and Wisconsin officials, and working around the clock to bring systems safely back online.
The incident was concentrated on an area of our network separate from where we store sensitive information related to you, our Cellcom/Nsight family. We have no evidence that personal information related to you, your name, your addresses, your financial information, is impacted by this event.
Thanks to an incredible amount of hard work and tenacity, we achieved a major milestone last night. We are building on that success and expect to have the rest of service restored this week. Every part of this recovery is being handled with care and precision — we will not rush anything that compromises safety, security or trust.
For 115 years, as a company that began as a local telephone provider, we've understood that connection is everything. Generations of my family have had the privilege of serving generations of yours. We've grown and changed with the times, but our purpose has always remained the same: helping you stay connected to what matters most. We know this disruption has caused frustration and, for some, real hardship — and for that, I am truly sorry.
In the midst of it all, I’ve witnessed what makes this company special. Across the organization, people put mission ahead of role, put pride aside, and put the community first. We saw teams find creative solutions, take personal initiative, and step outside the bounds of job descriptions to make things right. That spirit — of care, urgency and accountability — has defined our response and will continue to shape our path forward.
To our employees — thank you. Your heart and grit during these trying days make me proud beyond words.
To our customers — thank you. Your patience, understanding and kindness mean the world to us. We’ve felt your support every step of the way, and we don’t take it for granted.
We know that gratitude alone isn’t enough — we’re taking responsibility. We’re covering the time you were without service, and then some.
Please know that we hear you, we appreciate you, and you have the very best team in the world on the case. I know we will be a better and stronger Cellcom/Nsight for this experience.
Warmly,
Brighid Riordan in cursive
Brighid Riordan
Luxury department store is forced to shut some systems but website and shops continue to operate.
Harrods has been hit by a cyber-attack, just days after Marks & Spencer and the Co-op were targeted.
The luxury department store is understood to have been forced to shut down some systems, but said its website and all its stores, including the Knightsbridge flagship, H beauty and airport outlets, continued to operate. It is understood the retailer first realised it was being targeted earlier this week.
Harrods said in a statement: “We recently experienced attempts to gain unauthorised access to some of our systems. Our seasoned IT security team immediately took proactive steps to keep systems safe and as a result we have restricted internet access at our sites today.”
The retailer said it was not asking customers to take any action, indicating that it did not suspect data had been accessed. It added: “We will continue to provide updates as necessary.”
On April 26, an unauthorized user exploited a vulnerability with a GitHub workflow to gain unauthorized access to tokens, all of which have now been invalidated. At this time, our investigation has found no evidence of code modifications, unauthorized access to production systems, exposure of customer data, or access to personal information.
This update outlines what happened, what we’ve done so far, and the actions we are taking to prevent it from happening in the future.
Le réseau informatique de l'UCBA a été la cible d'une cyberattaque. L'association a immédiatement mis en place les mesures de sécurité nécessaires et a saisi les autorités compétentes. Une analyse approfondie sur les faits est en cours.
Key Takeaways The threat actor gained initial access by a fake Zoom installer that used d3f@ckloader and IDAT loader to drop SectopRAT. After nine days of dwell time, the SectopRAT malware dropped …
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.”
La Sûreté de l'État est touchée par un grave incident de sécurité. Des pirates chinois ont détourné des courriels pendant deux ans, compromettant potentiellement des données sensibles du personnel.
Key Takeaways The intrusion began with the exploitation of CVE-2023-22527 on an exposed Windows Confluence server, ultimately leading to the deployment of LockBit ransomware across the environment.…
Nominet, the U.K. domain registry that maintains .co.uk domains, has experienced a cybersecurity incident that it confirmed is linked to the recent
ICAO says the incident was allegedly linked to a hacker 'known for targeting international organizations'
BeyondTrust identified a security incident that involved a limited number of Remote Support SaaS customers. On December 5th, 2024, a root cause analysis into a Remote Support SaaS issue identified an API key for Remote Support SaaS had been compromised. BeyondTrust immediately revoked the API key, notified known impacted customers, and suspended those instances the same day while providing alternative Remote Support SaaS instances for those customers.
12/12/24 While the security incident forensics investigation remains ongoing, there are no material updates to provide at this time. We continue to pursue all possible paths as part of the forensic analysis, with the assistance of external forensic parties, to ensure we conduct as thorough an investigation as possible. We continue to communicate, and work closely with, all known affected customers. We will continue to provide updates here until our investigation is concluded.
Amazon has launched AWS Security Incident Response, a service to help triage and respond to cybersecurity threats.
Version 1.1: October 18, 2024
On October 16, 2024, Radiant Capital experienced a security breach resulting in the loss of approximately $50 million USD. The attack compromised three Radiant developers, all of whom are…
MITRE’s AI Incident Sharing initiative helps organizations receive and hand out data on real-world AI incidents.
Non-profit technology and R&D company MITRE has introduced a new mechanism that enables organizations to share intelligence on real-world AI-related incidents.
Shaped in collaboration with over 15 companies, the new AI Incident Sharing initiative aims to increase community knowledge of threats and defenses involving AI-enabled systems.
CrowdStrike says it has revamped several testing, validation, and update rollout processes to prevent a repeat of the embarrassing July outage that caused widespread disruption on Windows systems around the world.
Transport for London's ongoing cyber incident has taken a dark turn as the organization confirmed that some data, including bank details, might have been accessed, and 30,000 employees' passwords will need to be reset via in-person appointments.
