David 🏴
@davidsheryn.bsky.social
InfoSec and aviation. Likes are bookmarks not endorsements.
No DMs, please use Signal: David.7323
London, Buckinghamshire, Bristol, Wales.
No DMs, please use Signal: David.7323
London, Buckinghamshire, Bristol, Wales.
Reposted by David 🏴
So you have Wolfson College, Oxford, and Wolfson College, Cambridge
The only other person currently to have a college named after them in both universities is Jesus Christ
The only other person currently to have a college named after them in both universities is Jesus Christ
December 1, 2025 at 8:01 AM
So you have Wolfson College, Oxford, and Wolfson College, Cambridge
The only other person currently to have a college named after them in both universities is Jesus Christ
The only other person currently to have a college named after them in both universities is Jesus Christ
Reposted by David 🏴
Here's a #HigherEducationPostcard of @wolfsonoxford.bsky.social
Wolfson was founded in 1965. Named for Sir Isaac Wolfson, mail order baron, it is one of two pairs of colleges in Oxbridge named for the same person
If you like this image, please retweet it - remember, BlueSky has #NoAlgorithm
Wolfson was founded in 1965. Named for Sir Isaac Wolfson, mail order baron, it is one of two pairs of colleges in Oxbridge named for the same person
If you like this image, please retweet it - remember, BlueSky has #NoAlgorithm
December 1, 2025 at 8:01 AM
Here's a #HigherEducationPostcard of @wolfsonoxford.bsky.social
Wolfson was founded in 1965. Named for Sir Isaac Wolfson, mail order baron, it is one of two pairs of colleges in Oxbridge named for the same person
If you like this image, please retweet it - remember, BlueSky has #NoAlgorithm
Wolfson was founded in 1965. Named for Sir Isaac Wolfson, mail order baron, it is one of two pairs of colleges in Oxbridge named for the same person
If you like this image, please retweet it - remember, BlueSky has #NoAlgorithm
😳☺️
✨ A few years back I stood outside Wells Cathedral for a full day and photographed the impact of the light on the front facade. I was amazed at the outcome - at how a single entity could morph and change under the changing light. 🌅 #thread
November 30, 2025 at 7:59 PM
😳☺️
I suppose *somebody* had to try it… 🙄
November 26, 2025 at 7:53 AM
I suppose *somebody* had to try it… 🙄
Brilliant! 🤣
November 25, 2025 at 8:34 PM
Brilliant! 🤣
Reposted by David 🏴
The 2026 @lewybodysociety.bsky.social calendar is now available on www.lewybody.org/product/2026...
Every penny goes directly to the Society . The artwork and printing are my annual gift to the charity.
Every penny goes directly to the Society . The artwork and printing are my annual gift to the charity.
November 22, 2025 at 9:25 AM
The 2026 @lewybodysociety.bsky.social calendar is now available on www.lewybody.org/product/2026...
Every penny goes directly to the Society . The artwork and printing are my annual gift to the charity.
Every penny goes directly to the Society . The artwork and printing are my annual gift to the charity.
👍
Now would be a really good time for the UK to create a welcoming environment for international students
Just saying ...
www.bbc.com/news/article...
Just saying ...
www.bbc.com/news/article...
New international student enrollment drops 17% at US universities
A survey of more than 800 US universities and colleges suggest visa delays and denials were among the top issues behind the decline.
www.bbc.com
November 17, 2025 at 7:20 PM
👍
🤣
‘Our client has broadcast all of the right words, but not necessarily in the right order.’
(Nicked from Facebook. Sorry not sorry)
(Nicked from Facebook. Sorry not sorry)
November 17, 2025 at 7:19 PM
🤣
This…
A propos of nothing, long ago I got used to writing emails quite like letters because they could all be FOId due to my public roles - and I’m glad I retained the habit.
November 13, 2025 at 8:08 PM
This…
Reposted by David 🏴
I am not a lawyer, just a historian, but one fundamental problem with the political debate about the EU, especially in English publications is that the whole principle of the acquis communnitaire is not understood or taken seriously. The EU is a framework of rules, not an alliance.
November 6, 2025 at 7:45 AM
I am not a lawyer, just a historian, but one fundamental problem with the political debate about the EU, especially in English publications is that the whole principle of the acquis communnitaire is not understood or taken seriously. The EU is a framework of rules, not an alliance.
Reposted by David 🏴
www.theguardian.com/world/2025/n... people now realising that electric cars / busses are always on. I wonder when the 1st major electric car manufacturer gets hacked / has an issue and accidentally disables the whole fleet will be?
Danish authorities in rush to close security loophole in Chinese electric buses
Investigation launched after discovery that Chinese supplier had remote access to vehicles’ control systems
www.theguardian.com
November 6, 2025 at 8:23 AM
www.theguardian.com/world/2025/n... people now realising that electric cars / busses are always on. I wonder when the 1st major electric car manufacturer gets hacked / has an issue and accidentally disables the whole fleet will be?
Reposted by David 🏴
Early November 2021 down by the river. It felt as if winter had arrived.
November 6, 2025 at 8:25 AM
Early November 2021 down by the river. It felt as if winter had arrived.
@wazzock.bsky.social here for the “ beer, jazz, classical, prog, cricket” but above all, “Tom Lehrer and Flanders & Swann” 🙂
November 5, 2025 at 8:02 PM
@wazzock.bsky.social here for the “ beer, jazz, classical, prog, cricket” but above all, “Tom Lehrer and Flanders & Swann” 🙂
Absolutely this.
Whatever else comes out once the attack on the ECML train last night, this alone is a credit to the train crew, driver, and signalling team.
Huntingdon was the first possible stop. In a highly stressful situation and improvising a plan the train lost just 3 minutes vs line speed to get there.
Huntingdon was the first possible stop. In a highly stressful situation and improvising a plan the train lost just 3 minutes vs line speed to get there.
November 2, 2025 at 11:47 AM
Absolutely this.
Reposted by David 🏴
Occasional reminder that Lemsip is a weird-tasting waste of money: drink hot water mixed with lemon and a spoonful of honey. Swallow two generic paracetamol tablets and, if you need decongestant, OTC pseudoephedrine hydrochloride (follow pack dosing). It’s cheaper overall and tastes much better.
October 29, 2025 at 11:41 PM
Occasional reminder that Lemsip is a weird-tasting waste of money: drink hot water mixed with lemon and a spoonful of honey. Swallow two generic paracetamol tablets and, if you need decongestant, OTC pseudoephedrine hydrochloride (follow pack dosing). It’s cheaper overall and tastes much better.
Reposted by David 🏴
📣THREAD: It’s surprising to me that so many people were surprised to learn that Signal runs partly on AWS (something we can do because we use encryption to make sure no one but you–not AWS, not Signal, not anyone–can access your comms).
It’s also concerning. 1/
It’s also concerning. 1/
PSA: we're aware that Signal is down for some people. This appears to be related to a major AWS outage. Stand by.
October 27, 2025 at 10:38 AM
📣THREAD: It’s surprising to me that so many people were surprised to learn that Signal runs partly on AWS (something we can do because we use encryption to make sure no one but you–not AWS, not Signal, not anyone–can access your comms).
It’s also concerning. 1/
It’s also concerning. 1/
Reposted by David 🏴
When a chatbot gets something wrong, it’s not because it made an error. It’s because on that roll of the dice, it happened to string together a group of words that, when read by a human, represents something false. But it was working entirely as designed. It was supposed to make a sentence & it did.
June 19, 2025 at 11:28 AM
When a chatbot gets something wrong, it’s not because it made an error. It’s because on that roll of the dice, it happened to string together a group of words that, when read by a human, represents something false. But it was working entirely as designed. It was supposed to make a sentence & it did.
Reposted by David 🏴
Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.
June 19, 2025 at 11:21 AM
Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.
Reposted by David 🏴
Airline strands ex-BBC editor, citing Parkinson's www.bbc.com/news/article... Don’t travel with Turkish Airlines- they discriminate against people with Parkinson’s
'My sin was having Parkinson's': Presenter left stranded
Mark Mardell was left feeling 'humiliated' after he was told he could not board a flight.
www.bbc.com
October 27, 2025 at 5:39 PM
Airline strands ex-BBC editor, citing Parkinson's www.bbc.com/news/article... Don’t travel with Turkish Airlines- they discriminate against people with Parkinson’s
Reposted by David 🏴
Remember this can also have some long-term consequences that are really serious. Certain diagnosis or medications can have implications on future employment as well as the ability to hold certain certifications and licenses. Getting your medical record corrected after this will be an nightmare
October 26, 2025 at 7:42 AM
Remember this can also have some long-term consequences that are really serious. Certain diagnosis or medications can have implications on future employment as well as the ability to hold certain certifications and licenses. Getting your medical record corrected after this will be an nightmare
Reposted by David 🏴
www.facebook.com/share/p/19C1...
My friend Mark Mardell was chucked off his Turkish Airlines flight at the weekend because he had Parkinson’s and his son had asked for assistance for him. (He’s written about it as a public post on Facebook but the link is proving hard to share outside,)
My friend Mark Mardell was chucked off his Turkish Airlines flight at the weekend because he had Parkinson’s and his son had asked for assistance for him. (He’s written about it as a public post on Facebook but the link is proving hard to share outside,)
October 27, 2025 at 6:00 AM
www.facebook.com/share/p/19C1...
My friend Mark Mardell was chucked off his Turkish Airlines flight at the weekend because he had Parkinson’s and his son had asked for assistance for him. (He’s written about it as a public post on Facebook but the link is proving hard to share outside,)
My friend Mark Mardell was chucked off his Turkish Airlines flight at the weekend because he had Parkinson’s and his son had asked for assistance for him. (He’s written about it as a public post on Facebook but the link is proving hard to share outside,)
Ugh…
Did you know that you can passively download malicious payloads onto target systems?
Lots of software caches images locally to save bandwidth, often without stripping metadata first.
You can leverage this functionality to download payloads.
malwaretech.com/2025/10/exif...
Lots of software caches images locally to save bandwidth, often without stripping metadata first.
You can leverage this functionality to download payloads.
malwaretech.com/2025/10/exif...
Look At This Photograph - Passively Downloading Malware Payloads Via Image Caching
Detailing an improved Cache Smuggling technique to turn 3rd party software into passive malware downloader.
malwaretech.com
October 25, 2025 at 12:00 PM
Ugh…
Reposted by David 🏴
NEW
The gaming of the American constitution
How a codified “written” constitution is being manipulated by those acting in bad faith
By me, at @prospectmagazine.co.uk
www.prospectmagazine.co.uk/ideas/law/th...
The gaming of the American constitution
How a codified “written” constitution is being manipulated by those acting in bad faith
By me, at @prospectmagazine.co.uk
www.prospectmagazine.co.uk/ideas/law/th...
October 24, 2025 at 10:47 AM
NEW
The gaming of the American constitution
How a codified “written” constitution is being manipulated by those acting in bad faith
By me, at @prospectmagazine.co.uk
www.prospectmagazine.co.uk/ideas/law/th...
The gaming of the American constitution
How a codified “written” constitution is being manipulated by those acting in bad faith
By me, at @prospectmagazine.co.uk
www.prospectmagazine.co.uk/ideas/law/th...
Reposted by David 🏴
Coda on app-locking: you can lock any app on iOS (support.apple.com/en-gb/guide/...); it's app-specific on Android, annoyingly. Consider moving sensitive apps you can't lock on Android (eg Gmail, which prob contains your entire life) to the Android Private Space support.google.com/android/answ...
Lock or hide an app on iPhone
Lock or hide or an app on iPhone so that others can’t see it or view the information in it.
support.apple.com
October 21, 2025 at 6:31 PM
Coda on app-locking: you can lock any app on iOS (support.apple.com/en-gb/guide/...); it's app-specific on Android, annoyingly. Consider moving sensitive apps you can't lock on Android (eg Gmail, which prob contains your entire life) to the Android Private Space support.google.com/android/answ...
@rosieniven.bsky.social hi Rosie, welcome and thanks for the follow 🙂
October 15, 2025 at 6:20 PM
@rosieniven.bsky.social hi Rosie, welcome and thanks for the follow 🙂