Martijn Grooten
@martijngrooten.bsky.social
Threat researcher, human rights supporter, obsessive reader, marathon runner, eternal traveler, serial migrant, music blogger, lapsed mathematician.
https://lapsedordinary.net/
Signal: martijngrooten.37
https://lapsedordinary.net/
Signal: martijngrooten.37
This is brutal
January 28, 2026 at 3:29 PM
This is brutal
Reposted by Martijn Grooten
New security feature released by WhatsApp to further protect high risk users from spyware 🙌
For some, this can be truly life saving!
More companies should be adding such features to their platforms and devices.
By @cyberscoop.bsky.social @timstarks.bsky.social
cyberscoop.com/whatsapp-str...
For some, this can be truly life saving!
More companies should be adding such features to their platforms and devices.
By @cyberscoop.bsky.social @timstarks.bsky.social
cyberscoop.com/whatsapp-str...
January 27, 2026 at 11:42 PM
New security feature released by WhatsApp to further protect high risk users from spyware 🙌
For some, this can be truly life saving!
More companies should be adding such features to their platforms and devices.
By @cyberscoop.bsky.social @timstarks.bsky.social
cyberscoop.com/whatsapp-str...
For some, this can be truly life saving!
More companies should be adding such features to their platforms and devices.
By @cyberscoop.bsky.social @timstarks.bsky.social
cyberscoop.com/whatsapp-str...
Reposted by Martijn Grooten
I just sent out a new edition of my irregular digital security newsletter, in which I looked at an extension of the MITRE ATT&CK framework for at-risk groups travels-in-digital-security.ghost.io/26-january-2...
26 January 2026: Expanding the ATT&CK surface
New year, new blog post. I am still looking for work so reach out of you have something, including contract work, or would like a copy of my resume. It is kind of with that resume in mind that I write...
travels-in-digital-security.ghost.io
January 26, 2026 at 10:35 PM
I just sent out a new edition of my irregular digital security newsletter, in which I looked at an extension of the MITRE ATT&CK framework for at-risk groups travels-in-digital-security.ghost.io/26-january-2...
I just sent out a new edition of my irregular digital security newsletter, in which I looked at an extension of the MITRE ATT&CK framework for at-risk groups travels-in-digital-security.ghost.io/26-january-2...
26 January 2026: Expanding the ATT&CK surface
New year, new blog post. I am still looking for work so reach out of you have something, including contract work, or would like a copy of my resume. It is kind of with that resume in mind that I write...
travels-in-digital-security.ghost.io
January 26, 2026 at 10:35 PM
I just sent out a new edition of my irregular digital security newsletter, in which I looked at an extension of the MITRE ATT&CK framework for at-risk groups travels-in-digital-security.ghost.io/26-january-2...
Reposted by Martijn Grooten
A new this.weekinsecurity.com is out:
• ICE challenges Fourth Amendment
• U.S. says DOGE may've misused Social Security data
• Russia blamed for failed Poland power outage
• Microsoft gave FBI Windows encryption keys
...and lots more news. Plus, the happy corner & a reader-submitted cyber-cat. 🐈
• ICE challenges Fourth Amendment
• U.S. says DOGE may've misused Social Security data
• Russia blamed for failed Poland power outage
• Microsoft gave FBI Windows encryption keys
...and lots more news. Plus, the happy corner & a reader-submitted cyber-cat. 🐈
this week in security — january 25 2026 edition
DHS memo challenges Fourth Amendment, DOGE may have misused Social Security data, Russia's Sandworm blamed for failed Poland power outage, and more.
this.weekinsecurity.com
January 25, 2026 at 4:22 PM
A new this.weekinsecurity.com is out:
• ICE challenges Fourth Amendment
• U.S. says DOGE may've misused Social Security data
• Russia blamed for failed Poland power outage
• Microsoft gave FBI Windows encryption keys
...and lots more news. Plus, the happy corner & a reader-submitted cyber-cat. 🐈
• ICE challenges Fourth Amendment
• U.S. says DOGE may've misused Social Security data
• Russia blamed for failed Poland power outage
• Microsoft gave FBI Windows encryption keys
...and lots more news. Plus, the happy corner & a reader-submitted cyber-cat. 🐈
Reposted by Martijn Grooten
Signal will never message you like this.
If you get a message like this, SOMEONE IS TRYING TO HACK YOUR SIGNAL.
DO NOT GIVE THEM THAT CODE.
If you get a message like this, SOMEONE IS TRYING TO HACK YOUR SIGNAL.
DO NOT GIVE THEM THAT CODE.
January 26, 2026 at 2:16 AM
Signal will never message you like this.
If you get a message like this, SOMEONE IS TRYING TO HACK YOUR SIGNAL.
DO NOT GIVE THEM THAT CODE.
If you get a message like this, SOMEONE IS TRYING TO HACK YOUR SIGNAL.
DO NOT GIVE THEM THAT CODE.
Happy Burns Night, people in Scotland and beyond! ftherules.net/2026/01/25/c...
Camera Obscura – I Love My Jean – F— the Rules
ftherules.net
January 25, 2026 at 5:22 PM
Happy Burns Night, people in Scotland and beyond! ftherules.net/2026/01/25/c...
Reposted by Martijn Grooten
And if that video came from pretty much any other country the government line would be treated for what it is: a lie.
January 25, 2026 at 9:53 AM
And if that video came from pretty much any other country the government line would be treated for what it is: a lie.
Reposted by Martijn Grooten
I’m really quite surprised at the BBC website today. ‘Here is a video, some people say it does not show what it very obviously shows’ is not how you report this.
January 25, 2026 at 9:52 AM
I’m really quite surprised at the BBC website today. ‘Here is a video, some people say it does not show what it very obviously shows’ is not how you report this.
Reposted by Martijn Grooten
The Trump administration has paused immigrant visa processing for people from 75 countries.
We’re looking to speak to applicants, especially those close to a final decision, about the impact of the suspension.
Fill out our secure form here:
We’re looking to speak to applicants, especially those close to a final decision, about the impact of the suspension.
Fill out our secure form here:
People affected by the US visa freeze: share your experience
www.theguardian.com
January 25, 2026 at 8:52 AM
The Trump administration has paused immigrant visa processing for people from 75 countries.
We’re looking to speak to applicants, especially those close to a final decision, about the impact of the suspension.
Fill out our secure form here:
We’re looking to speak to applicants, especially those close to a final decision, about the impact of the suspension.
Fill out our secure form here:
Reposted by Martijn Grooten
Here's a thread about what happened one year ago today, January 24th 2025.
At the time I was working, part-time, on some cybersecurity projects for an international NGO. Most of these projects were funded by the US government (USG).
At the time I was working, part-time, on some cybersecurity projects for an international NGO. Most of these projects were funded by the US government (USG).
January 24, 2026 at 12:19 PM
Here's a thread about what happened one year ago today, January 24th 2025.
At the time I was working, part-time, on some cybersecurity projects for an international NGO. Most of these projects were funded by the US government (USG).
At the time I was working, part-time, on some cybersecurity projects for an international NGO. Most of these projects were funded by the US government (USG).
Reposted by Martijn Grooten
People already working hard to prove how perfect Alex Pretti was. To show he didn't "deserve" to be killed. But it's a trap folks. You're only feeding into a dynamic where people who are considered lesser get no protection. You don't have to be an Alex Pretti to deserve to live.
January 24, 2026 at 8:17 PM
People already working hard to prove how perfect Alex Pretti was. To show he didn't "deserve" to be killed. But it's a trap folks. You're only feeding into a dynamic where people who are considered lesser get no protection. You don't have to be an Alex Pretti to deserve to live.
Here's a thread about what happened one year ago today, January 24th 2025.
At the time I was working, part-time, on some cybersecurity projects for an international NGO. Most of these projects were funded by the US government (USG).
At the time I was working, part-time, on some cybersecurity projects for an international NGO. Most of these projects were funded by the US government (USG).
January 24, 2026 at 12:19 PM
Here's a thread about what happened one year ago today, January 24th 2025.
At the time I was working, part-time, on some cybersecurity projects for an international NGO. Most of these projects were funded by the US government (USG).
At the time I was working, part-time, on some cybersecurity projects for an international NGO. Most of these projects were funded by the US government (USG).
Reposted by Martijn Grooten
If you store your BitLocker key with Microsoft, Microsoft can and will hand the key over to law enforcement in response to valid court orders. www.forbes.com/sites/thomas...
Microsoft Gave FBI BitLocker Encryption Keys, Exposing Privacy Flaw
The tech giant said providing encryption keys was a standard response to a court order. But companies like Apple and Meta set up their systems so such a privacy violation isn’t possible.
www.forbes.com
January 23, 2026 at 2:21 PM
If you store your BitLocker key with Microsoft, Microsoft can and will hand the key over to law enforcement in response to valid court orders. www.forbes.com/sites/thomas...
Runa is really as good as it gets when it comes to this kind of work, the importance of which is becoming more relevant every day.
I started Granitt in 2022 to help journalists and other groups of at-risk people continue to do their work safely and securely. Please get in touch if you’re looking for an assessment, policy and process development, training, or presentation. techcrunch.com/2022/07/15/g...
Runa Sandvik's new startup Granitt secures at-risk people from hackers and nation states | TechCrunch
The Norwegian hacker talks about her new venture aimed at protecting journalists and critics from powerful adversaries.
techcrunch.com
January 23, 2026 at 12:42 PM
Runa is really as good as it gets when it comes to this kind of work, the importance of which is becoming more relevant every day.
FT podcast: "[The Board of Peace] is Donald Trump's signature foreign policy initiative... for at least this week."
www.ft.com/content/7540...
www.ft.com/content/7540...
Trump’s divisive 'Board of Peace’
A fledgling club is taking shape as the US president tries to recast the global order
www.ft.com
January 23, 2026 at 12:37 PM
FT podcast: "[The Board of Peace] is Donald Trump's signature foreign policy initiative... for at least this week."
www.ft.com/content/7540...
www.ft.com/content/7540...
Reposted by Martijn Grooten
Darker skin colour, changing facial expression from composed to crying, straight from the White House.
www.theguardian.com/us-news/2026...
www.theguardian.com/us-news/2026...
White House posts digitally altered image of woman arrested after ICE protest
Guardian analysis shows images are the same, with Nekima Levy Armstrong looking composed in original but sobbing after alteration
www.theguardian.com
January 23, 2026 at 9:21 AM
Darker skin colour, changing facial expression from composed to crying, straight from the White House.
www.theguardian.com/us-news/2026...
www.theguardian.com/us-news/2026...
Hey Americans, why isn't this your national anthem yet? ballofwax.bandcamp.com/track/at-the...
At the Seams, by Kimya Dawson
from the album Ball of Wax Volume 47: Songs of Resistance and Rebuilding
ballofwax.bandcamp.com
January 23, 2026 at 12:49 AM
Hey Americans, why isn't this your national anthem yet? ballofwax.bandcamp.com/track/at-the...
Reposted by Martijn Grooten
🔊 The Call for Papers is now open for VB2026!
We're looking for engaging, insightful, and original talks for the 36th Virus Bulletin International Conference, taking place 14–16 October 2026 in Seville, Spain.
📅 Deadline: 9 April 2026
📝 Submit your abstract: www.virusbulletin.com/conference/v...
We're looking for engaging, insightful, and original talks for the 36th Virus Bulletin International Conference, taking place 14–16 October 2026 in Seville, Spain.
📅 Deadline: 9 April 2026
📝 Submit your abstract: www.virusbulletin.com/conference/v...
January 22, 2026 at 2:02 PM
🔊 The Call for Papers is now open for VB2026!
We're looking for engaging, insightful, and original talks for the 36th Virus Bulletin International Conference, taking place 14–16 October 2026 in Seville, Spain.
📅 Deadline: 9 April 2026
📝 Submit your abstract: www.virusbulletin.com/conference/v...
We're looking for engaging, insightful, and original talks for the 36th Virus Bulletin International Conference, taking place 14–16 October 2026 in Seville, Spain.
📅 Deadline: 9 April 2026
📝 Submit your abstract: www.virusbulletin.com/conference/v...
Reposted by Martijn Grooten
New: Cellebrite continues to be used to perpetrate human rights abuses. Their UFED device was used to break into the phones of activists in Jordan.
Report from Citizen Lab:
https://citizenlab.ca/research/from-protest-to-peril-cellebrite-used-against-jordanian-civil-society/
Report from Citizen Lab:
https://citizenlab.ca/research/from-protest-to-peril-cellebrite-used-against-jordanian-civil-society/
January 22, 2026 at 1:51 PM
New: Cellebrite continues to be used to perpetrate human rights abuses. Their UFED device was used to break into the phones of activists in Jordan.
Report from Citizen Lab:
https://citizenlab.ca/research/from-protest-to-peril-cellebrite-used-against-jordanian-civil-society/
Report from Citizen Lab:
https://citizenlab.ca/research/from-protest-to-peril-cellebrite-used-against-jordanian-civil-society/
Reposted by Martijn Grooten
AI was the accelerant on a perverse incentive fire sparked by bug bounty platforms that reward spray & pray. Both open source & orgs without dedicated vuln response teams get overloaded when they offer cash there. cURL is right to leave AI shark-infested waters to start fresh.
January 21, 2026 at 2:55 PM
AI was the accelerant on a perverse incentive fire sparked by bug bounty platforms that reward spray & pray. Both open source & orgs without dedicated vuln response teams get overloaded when they offer cash there. cURL is right to leave AI shark-infested waters to start fresh.
Reposted by Martijn Grooten
here's a link that works www.tcd.ie/hr/vacancies/
Vacancies - Human Resources - Trinity College Dublin
www.tcd.ie
January 21, 2026 at 2:20 PM
here's a link that works www.tcd.ie/hr/vacancies/
Reposted by Martijn Grooten
I’m looking for my right-hand person to come help me run the @aial.ie
- Job Title: Lab Coordinator, AI Accountability Lab (0.8 FTE)
- Pay Scale: (€58,999 - €69,325 per annum pro-rata)
- Closing Date: 11-Feb-2026 12:00
Apply here: my.corehr.com/pls/trrecrui...
Main Responsibilities👇🏾
- Job Title: Lab Coordinator, AI Accountability Lab (0.8 FTE)
- Pay Scale: (€58,999 - €69,325 per annum pro-rata)
- Closing Date: 11-Feb-2026 12:00
Apply here: my.corehr.com/pls/trrecrui...
Main Responsibilities👇🏾
January 21, 2026 at 11:17 AM
I’m looking for my right-hand person to come help me run the @aial.ie
- Job Title: Lab Coordinator, AI Accountability Lab (0.8 FTE)
- Pay Scale: (€58,999 - €69,325 per annum pro-rata)
- Closing Date: 11-Feb-2026 12:00
Apply here: my.corehr.com/pls/trrecrui...
Main Responsibilities👇🏾
- Job Title: Lab Coordinator, AI Accountability Lab (0.8 FTE)
- Pay Scale: (€58,999 - €69,325 per annum pro-rata)
- Closing Date: 11-Feb-2026 12:00
Apply here: my.corehr.com/pls/trrecrui...
Main Responsibilities👇🏾
I don't know who needs to know this, other than pretty much every organization that is hiring, but your hiring websites are terribly broken.
January 21, 2026 at 2:46 PM
I don't know who needs to know this, other than pretty much every organization that is hiring, but your hiring websites are terribly broken.
Thinly sliced fennel, with lemon juice and zest, olive oil, salt, pepper, the fennel fronds and - optionally - some toasted pine nuts makes a great and very simple salad.
January 20, 2026 at 10:41 PM
Thinly sliced fennel, with lemon juice and zest, olive oil, salt, pepper, the fennel fronds and - optionally - some toasted pine nuts makes a great and very simple salad.