Brian Honan

Brian Honan

@brianhonan.bsky.social

Irish cybersecurity pro, author, speaker, and commentator. CEO of BH Consulting, Head of Ireland's first CSIRT - IRISSCERT, former member of ENISA Advisory Group, & former Special Advisor on CyberSecurity to Europol. PGP ID 0xF1B5CF7D

4,360 Followers 492 Following 1,289 Posts Joined Jul 2023
58 minutes ago
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Warning of scam messages offering people accommodation The Department of Housing has warned the public about scam messages or online posts claiming to be from Housing for All or Ireland's Housing Plan, offering accommodation to members of the public.

The Department of Housing has warned the public about scam messages or online posts claiming to be from Housing for All or Ireland's Housing Plan, offering accommodation to members of the public

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1 hour ago
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Poland says foiled cyberattack on nuclear centre may have come from Iran Poland has foiled a cyberattack on its nuclear research centre and is examining signs that Iran may be behind it, ​the government said on Thursday, cautioning the indicators might ‌be a deliberate mis...

Poland says foiled cyberattack on nuclear centre may have come from Iran
www.reuters.com/world/poland...

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6 hours ago
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How an Iranian-backed group crippled Stryker’s Irish HQ with a ‘wiper’ cyberattack Staff sent home as Iranian-backed hacktivists shut down some of Stryker's systems and wipe some staff members' phones

I talked to the Irish Examiner @irishexaminer.bsky.social about the #cybersecurity attack against #Stryker and what other companies should learn from it

www.irishexaminer.com/news/arid-41...

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19 hours ago
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11 March 2026: Noise about Signal Welcome to a new edition of my irregular digital security newsletter, where this time I write about Signal (and WhatsApp and Telegram) phishing. I am currently looking for work, contract (including p...

I just sent out a new edition of my digital security newsletter. This time I looked at the Signal (and WhatsApp/Telegram) phishing, following a much discussed report by Dutch intelligence travels-in-digital-security.ghost.io/11-march-202...

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19 hours ago
The shattered ruin of a castle tower, perfectly reflected in the blue waters of Lough Oughter, Cavan

Clogh Oughter Castle • Cavan

The castle was built by William Gorm de Lacy in the 13th century.

Clogh Oughter Castle was the very last Irish stronghold to fall to Cromwell’s forces when it was bombarded by cannon until the garrison finally surrendered.

#Ireland #SpéirGhorm #DiscoverIreland

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23 hours ago

rough (like uff in buff)
cough (like off in scoff)
drought (like ow in cow)
though (like o in no)
thought (like aw in saw)
through (like oo in woo)

Enough.

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20 hours ago
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Iran conflict drives heightened espionage activity against Middle East targets | Proofpoint US Analyst note: Proofpoint uses the UNK_ designator to define clusters of activity that are still developing and have not been observed for long enough to receive a numerical TA designation.

Conflict in Iran is accelerating cyber espionage across the Middle East.

Since the start of Operation Epic Fury on February 28, 2026,
Proofpoint researchers have observed heightened cyber activity against Middle East targets tied to the war.

Details: brnw.ch/21x0EJi.

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20 hours ago
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Pro-Iran hackers claim cyberattack on major US medical device maker | CNN Politics A cyberattack claimed by pro-Iran hackers has caused a “global network disruption” to a major US medical device maker, according to a company statement.

"The cyberattack appears to be one of the first notable pro-Iranian hacks against US infrastructure since the US and Israel began bombing Iran last month." www.cnn.com/2026/03/11/p...

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21 hours ago
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Medtech Firm Stryker Disrupted by Pro-Iran Hackers Michigan-based medical technology giant Stryker appears to have been hacked by a pro-Iranian group called Handala, leading to global operations being disrupted, IT

Medtech firm Stryker, based in Michigan, has been disrupted by pro-Iran hackers, with devices and servers being wiped and terabytes of data allegedly stolen, as cyberattacks tied to the conflict appear to intensify www.govinfosecurity.com/medtech-firm...

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21 hours ago

I don’t know who needs to hear this, but executives aren’t going to read more than 3 sentences of that email you’re writing. Get to the point.

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21 hours ago

The whole thread is appalling but TL;DR - Scottish police extracted nudes from a rape victim's phone and gave them to the accused rapist.

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21 hours ago
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Iranian Hacktivists Strike Medical Device Maker Stryker in "Severe" Attack that Wiped Systems Stryker, a leading maker of medical devices, was hit early this morning with a cyberattack that has reportedly caused the company's systems to shut down globally. A known Iranian hacktivist group nam...

I've published more details in a piece about the cyberattack here: www.zetter-zeroday.com/iranian-hack...

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22 hours ago

Ursula von der Leyen echoes the message: "Enforcing the oil price cap will help stabilise markets and limit Russia's revenues. This is not the moment to relax sanctions on Russia.

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22 hours ago

After hosting a call of G7 leaders, Emmanuel Macron says the situation in the energy markets "in no way" justifies the lifting of sanctions against Russia.

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1 day ago
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I think Teresa Mannion’s wise advice needs to be rolled out again … #fuelprices

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23 hours ago

Streisand Effect incoming

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23 hours ago
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White House Cybersecurity Strategy Is Light on Details, Big on Consequences The policy, which name-checks President Trump 15 times, aims to hit cyber adversaries first and 'use all instruments of national power to raise the costs for their aggression.'

My thoughts on the new cyber strategy in a piece by @robpegoraro.com for @pcmag.com
It eases reqs on industry & threatens kinetic action for cyber attacks against the US. @brysonbort.bsky.social points out no mention of CISA & I’m concerned with escalation we’ll pay for
www.pcmag.com/news/white-h...

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23 hours ago
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Éire agus Na Chéad Náisiúin | Player | Irish Television Channel, Súil Eile The incredible and untold story of how Irish people interacted with the First Nations of North America with contributions from some of Ireland's leading historians along with a new wave of First Natio...

🫱🏼‍🫲🏼 The excellent documentary 'Éire agus Na Chéad Náisiúin' explores the special bond between the people of Ireland and the First Nations of North America. Stream it now on @tg4.bsky.social 👇🏼 #SnaG2026 #SV20 #SeachtainNaGaeilge

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23 hours ago

The hackers say they targeted Stryker in retaliation for the bombing of the all-girls school in Iran and that they have wiped more that 200,000 Stryker systems, servers, and mobile devices and stolen 50 terabytes of critical data, forcing Stryker offices in 79 countries to shut down

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1 day ago
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Cork Stryker plants hit by suspected global Iranian-linked cyberattack Stryker operations worldwide jammed by hackers

Medical device maker Stryker reportedly hit with cyberattack from Iranian hacktivist group. So far only Irish news reporting, not here in US. "many employees have had their device data wiped and cannot access their accounts" Stryker makes surgical equipment, defibrillators, imaging equipment

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1 day ago
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Huge cyber attack leaves thousands unable to work after hackers cause blackout Thousands of people have been left unable to work following the sophisticated cyber attack on Stryker's global operations including its base in Cork, Ireland

This has cause global outage across all the US-based company's divisions. "All IT systems at Stryker, which employs 4,000 people in its Cork base, remain down. The attack is understood to have happened overnight and has affected all of the company's operations in Europe, Asia, and the US."

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1 day ago
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UK prosecutors lose appeal over terror charge against Kneecap’s Mo Chara Prosecutors in the UK have lost their appeal over a terror charge against Liam Óg Ó hAnnaidh, a memeber of rap trio Kneecap.

UK prosecutors lose appeal over terror charge against Kneecap’s Mo Chara

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1 day ago

It is incredible how often lionised leftist men, historical and contemporary, have turned out to be dangers to and/or shit about women and maddening how little it can be talked about for fear of "letting the side down"

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1 day ago

Hai! Ancient language specialist here 👋 that is actually the sacred script of the Tuatha Dé Danann. It reads "6 Cans for the price of 5 - March 14th-19th"

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1 day ago

I don't get the Moltbook acquisition. Aren't Facebook and Instagram already social networks for AI agents?

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1 day ago

Thread of beautiful shots of women here, all with alt text (as it should be) 👇

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1 day ago
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1 day ago
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Typical Dutch street design: narrow city-centre streets where cars, pedestrians and cyclists share the road paving is used, alongside build-outs and tight geometry to naturally slow motor traffic. Then, once on main roads, clear red cycle tracks keep bikes and motor vehicles safely separated.

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1 day ago

It still unnerves me to be on an autobahn in Germany when the car I am in is doing 140 km/h and it’s overtaken by another car as if we were just drifting along at 30 or 40

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1 day ago
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Irish UN peacekeepers in Lebanon remain safe and accounted for, despite ongoing clashes between the IDF and Hezbollah near their bases.

Defence Forces say the 358-strong 127th Infantry Battalion can adjust force protection measures as needed, including using secure bunkers and armored vehicles.

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