A hacktivist group with links to Iran’s intelligence agencies is claiming responsibility for a data-wiping attack against Stryker, a global medical technology company based in Michigan. News reports out of Ireland, Stryker’s largest hub outside of the United States, said the company sent home more than 5,000 workers there today. Meanwhile, a voicemail message at Stryker’s main U.S. headquarters says the company is currently experiencing a building emergency.
Based in Kalamazoo, Michigan, Stryker [NYSE:SYK] is a medical and surgical equipment maker that reported $25 billion in global sales last year. In a lengthy statement posted to Telegram, a hacktivist group known as Handala (a.k.a. Handala Hack Team) claimed that Stryker’s offices in 79 countries have been forced to shut down after the group erased data from more than 200,000 systems, servers and mobile devices.
A manifesto posted by the Iran-backed hacktivist group Handala, claiming a mass data-wiping attack against medical technology maker Stryker.
“All the acquired data is now in the hands of the free people of the world, ready to be used for the true advancement of humanity and the exposure of injustice and corruption,” a portion of the Handala statement reads.
The group said the wiper attack was in retaliation for a Feb. 28 missile strike that hit an Iranian school and killed at least 175 people, most of them children. The New York Times reports today that an ongoing military investigation has determined the United States is responsible for the deadly Tomahawk missile strike.
Handala was one of several hacker groups recently profiled by Palo Alto Networks, which links it to Iran’s Ministry of Intelligence and Security (MOIS). Palo Alto says Handala surfaced in late 2023 and is assessed as one of several online personas maintained by Void Manticore, a MOIS-affiliated actor.
Stryker’s website says the company has 56,000 employees in 61 countries. A phone call placed Wednesday morning to the media line at Stryker’s Michigan headquarters sent this author to a voicemail message that stated, “We are currently experiencing a building emergency. Please try your call again later.”
A report Wednesday morning from the Irish Examiner said Stryker staff are now communicating via WhatsApp for any updates on when they can return to work. The story quoted an unnamed employee saying anything connected to the network is down, and that “anyone with Microsoft Outlook on their personal phones had their devices wiped.”
“Multiple sources have said that systems in the Cork headquarters have been ‘shut down’ and that Stryker devices held by employees have been wiped out,” the Examiner reported. “The login pages coming up on these devices have been defaced with the Handala logo.”
Wiper attacks usually involve malicious software designed to overwrite any existing data on infected devices. But a trusted source with knowledge of the attack who spoke on condition of anonymity told KrebsOnSecurity the perpetrators in this case appear to have used a Microsoft service called Microsoft Intune to issue a ‘remote wipe’ command against all connected devices.
Intune is a cloud-based solution built for IT teams to enforce security and data compliance policies, and it provides a single, web-based administrative console to monitor and control devices regardless of location. The Intune connection is supported by this Reddit discussion on the Stryker outage, where several users who claimed to be Stryker employees said they were told to uninstall Intune urgently.
Palo Alto says Handala’s hack-and-leak activity is primarily focused on Israel, with occasional targeting outside that scope when it serves a specific agenda. The security firm said Handala also has taken credit for recent attacks against fuel systems in Jordan and an Israeli energy exploration company.
“Recent observed activities are opportunistic and ‘quick and dirty,’ with a noticeable focus on supply-chain footholds (e.g., IT/service providers) to reach downstream victims, followed by ‘proof’ posts to amplify credibility and intimidate targets,” Palo Alto researchers wrote.
The Handala manifesto posted to Telegram referred to Stryker as a “Zionist-rooted corporation,” which may be a reference to the company’s 2019 acquisition of the Israeli company OrthoSpace.
Stryker is a major supplier of medical devices, and the ongoing attack is already affecting healthcare providers. One healthcare professional at a major university medical system in the United States told KrebsOnSecurity they are currently unable to order surgical supplies that they normally source through Stryker.
“This is a real-world supply chain attack,” the expert said, who asked to remain anonymous because they were not authorized to speak to the press. “Pretty much every hospital in the U.S. that performs surgeries uses their supplies.”
John Riggi, national advisor for the American Hospital Association (AHA), said the AHA is not aware of any supply-chain disruptions as of yet.
“We are aware of reports of the cyber attack against Stryker and are actively exchanging information with the hospital field and the federal government to understand the nature of the threat and assess any impact to hospital operations,” Riggi said in an email. “As of this time, we are not aware of any direct impacts or disruptions to U.S. hospitals as a result of this attack. That may change as hospitals evaluate services, technology and supply chain related to Stryker and if the duration of the attack extends.”
According to a March 11 memo from the state of Maryland’s Institute for Emergency Medical Services Systems, Stryker indicated that some of their computer systems have been impacted by a “global network disruption.” The memo indicates that in response to the attack, a number of hospitals have opted to disconnect from Stryker’s various online services, including LifeNet, which allows paramedics to transmit EKGs to emergency physicians so that heart attack patients can expedite their treatment when they arrive at the hospital.
“As a precaution, some hospitals have temporarily suspended their connection to Stryker systems, including LIFENET, while others have maintained the connection,” wrote Timothy Chizmar, the state’s EMS medical director. “The Maryland Medical Protocols for EMS requires ECG transmission for patients with acute coronary syndrome (or STEMI). However, if you are unable to transmit a 12 Lead ECG to a receiving hospital, you should initiate radio consultation and describe the findings on the ECG.”
This is a developing story. Updates will be noted with a timestamp.
Update, 2:54 p.m. ET: Added comment from Riggi and perspectives on this attack’s potential to turn into a supply-chain problem for the healthcare system.
Update, Mar. 12, 7:59 a.m. ET: Added information about the outage affecting Stryker’s online services.
If medical device companies are “fair game”, are drug manufacturers and hospitals next?
No honor among thieves??
Israel quite literally flattened most hospitals in Gaza strip. You think they won’t do the same in Iran?
What a ridiculous claim. Hamas was using hospitals as command centers,
Israel did not attack the Minab school Just more excuses for terrorism and extortion.
Bellingcat confirms it was a US Tomahawk, something that Israel does not possess.
Yes, I frequently store my ammo next to an MRI machine.
Oh look.A brainwashed zio.Israle BOMBED HOSPITALS SCHOOL MOSQES AND AID SITES.Please have several thousand seats
That doesn’t make bombing schools, hospitals etc any less of a war crime.
There is no justification for Israeli genocidal tactics and disregard of laws.
Pointing this out is not supporting Hamas either.
seeing truth is not the same as being brainwashed
there are no good bombs and bad bombs
dehumanization of people is typical brainwash agenda
why kids in Ukraine or Gaza are worse than other kids
they are if your set of rules are from hell
LOL put all your security on the cloud….
“Microsoft service called Microsoft Intune to issue a ‘remote wipe’ command against all connected devices.”
Every vendor that has moved to a cloud based console has been compromised
Personally we quit using every security vendor that has moved to a cloud based console,
If I can access it on the web, so can someone else
I will stick will old school VPN and inside network please……
people with VPN on their devices were wiped, and you have it wrong.
Being connected to a cloud does not make you vulnerable, being connected to any network (even “inside”) does… good luck out there
They’re talking about using SaaS cloud consoles that directly control their entire device fleet, as opposed to only site-accessible compartmentalized consoles behind a specific private self-run VPN. That is actually not wrong, that’s absolutely the smarter play if less convenient and potentially overlook-able unless IT stays on toes. Calling a person a clown off the bat online because you haven’t even considered fully what they’re saying is pretty juvenile IMO, but we all have to grow up sometime I guess.
It’s never as simple as **cloud bad!** I’ve been in situations where similar wipe threats happened entirely “inside network”. The root-cause analysis usually points to at least two larger procedural issues:
* Errors that are not caught, causing operations to continue when they should have been stopped
* Operations that happen at scale without human oversight/approval
This company of 50k+ employees (or, maybe worse, the garbage Microsoft software they used and is used by *many* other organizations) had a way to blow away their entire IT infrastructure? That’s bonkers! Something right out of SpaceBalls: “Thank you for pressing the self destruct button.”
Thank you Ronald. I’ve been concerned about this from the start of “cloud” services. The company I was at got on that train. I think everyone for the most part has. It is just too much exposure.
I sent one of their recruiters a resume and an offer to help on LI 😉
I see all those funding cuts for national cybersecurity are working out…
The US brought back 4 avenger-class minesweepers from the mideast, they arrived in Philadelphia the same day Iran started mining the strait. If this isn’t the smartest and most deeply thought-out administration in American history, it’s certainly the one with the most brightly colored hats.
Yeah, because those ships are THIRTY YEARS OLD and we already have replacements that are ALREADY ACTIVE in the straight of hormuz called Littoral Combat Ships. For all the budget discussion around them, their entire mission set was designed around defense in littoral waters, such as the Strait of Hormuz. Your comment simply does not make sense to anyone actively monitoring the situation.
Not going to age well that comment….crude carriers sail in the deep waters…which is what this is all about!
Remember it’s not the physical space which needs to be cleared of mines…it’s the mindset of the insurance market…welcome to asymmetrical warfare 🙂
Littoral ships have no problems operating in deep water. They are not designed to engage true deep water navy ships in combat is all, ie they can’t hold deep water by themselves against a real navy. For that there is the rest of the US navy and navy airforce, and they have already sunk most of the Iranian navy.
The main danger isn’t mines, ie to set a proper minefield that would requires a proper minesweep to clear, requires a minelaying ship to sail uncontested through the area. For what can be placed now, the remote mine removing submersible that the littoral ships can bring is sufficient.
The current danger from Iran is not navy ships, its fast attack boats, and sea drones which have similar performance to fast attack boats. The avengers have .50cal machine guns which are only intended for defensive purposes. Equivalent soviet 12.7mm guns in the russian black sea fleet has proven very unreliable at defeating Ukrainian sea drones. At best all they have done is occasionally protect the vessel they are floating on, and can do nothing about drones targeting other vessels.
What the littoral ships have is a 57mm automatic bofors, in an unmanned, fully stabilized, computer controlled radar guided mount. Which is probably the best solution to asymmetric drone and boat style naval warfare currently available.
Ah! Now I understand what all those weird requests from IR domains were. And to think, we are just getting started. It’s going to be a fun March, with the Ides coming up and Microsoft in some areas an already open book…
Thanks for the post and my group also thanks you, one team one goal.
PleaseJustFixIT.org #HealthSupport #OneTeam
Karma is a b. Stryker has been getting business unethically for years. Made my day.
Love this comment !!! So true.
How have they been doing business unethically? I’m not disagreeing. I genuinely do not know
Ah, what was Stryker’s MS Secure Score? Everyone with an MS 365 tenant should be concerned and hoping they didn’t miss the same control that Stryker did.
Let’s not forget this story wouldn’t have been written if the orange one hadn’t started a war with Iran. But wait, wasn’t he supposed to be ‘The President of peace’, ‘I will focus on America’, ‘If I’m not elected, Kamala will start wars all over the world’. He’s showing his enjoyment of watching people die and inflicting suffering. And how can ANYONE believe this will end well considering he bankrupted 3 casinos. This is just the beginning of the pain the world will experience because of the actions of someone mentally ill who should be in a nursing home and not POTUS.
I like turtles
I also like turtles.
George died in 2009. Clearly the person this is about has been soulless since 2002/2003.
I think that turtles are fortunate to have a hard shell to protect them. Their domes are way better and cooler than any of our protective domes.
Pity that we have to work to protect their breeding sites.
Finding it harder and harder to not want to decimate and dismantle Israel’s ‘cybersecurity’ “program” my own self.