Terence Eden. He has a beard and is smiling.

Terence Eden’s Blog

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The 74,000 numbers of Barclays Bank

· 12 comments · 350 words · Viewed ~10,322 times


Long list of phone numbers in JSON format.

The UK faces an epidemic of telephone scams. Fraudsters are constantly calling people up pretending to be their bank. But how can you be sure the number displayed on your screen in genuine? You can't. The telecom system is hopelessly insecure and shouldn't be trusted for anything more complicated than dialling the speaking clock. Barclays bank knows that customers are worried about this. So…

Emoji Passwords and BitWarden

· 4 comments · 150 words · Viewed ~344 times


Screenshot of the Bitwarden Android interface. Emoji are showing as question marks.

Let me start by saying that Emoji Passwords are probably a really daft idea. I want to use emoji in my passwords. They're easy to type on a mobile keyboard, easy to remember, and a lot more fun than boring ASCII characters. Let's go with ✅🐎🔋📎 (As close as possible to Correct Horse Battery Staple) I use BitWarden as my password manager. It saves emoji passwords into its database, but has troub…

That's not my name! Practical problems in real name policies.

· 10 comments · 700 words · Viewed ~1,567 times


A human holds up some paper with a mysterious script printed on it.

Once in a while, big companies suggest that the answer to abuse is to ban anonymity and institute a Real Names policy. This time, it is Google's turn. They think that critical software should only be authored by people with "real names". I don't want to go into whether this is a good idea or not. Nor philosophical discussions of what a "real name" is. I want to discuss how this would work…

That's not how 2FA works

· 23 comments · 700 words · Viewed ~32,024 times


List of tweeters advocating for 2FA.

Another day, another high-profile website cloned to phish credentials. Tess Rinearson@_tessrIs this a phishing attempt? Goes to "githubverification.com" and asks for username and pw (if so, it nearly got me!) /cc @github pic.x.com/jgt4oNvjF2❤️ 2,243💬 111🔁 016:12 - Sat 16 January 2021 In the replies, you’ll see lots of techbros saying “this is why you should switch on 2FA people!!!” Except, an…

Falsehoods programmers believe about... Biometrics

· 17 comments · 700 words · Viewed ~8,721 times


A fingerprint being scanned.

(For the new reader, there is a famous essay called Falsehoods Programmers Believe About Names. It has since spawned a long list of Falsehoods Programmers Believe About....) Everyone has fingerprints! The BBC has a grim tale of a family with a genetic mutation which means they have no fingerprints. It details the issues they have getting official ID. In 2010, fingerprints became mandatory for…

I know how many microphones and cameras you have

· 8 comments · 300 words · Viewed ~423 times


Web browser asking for permission to access microphones. On the page, the number of microphones is displayed.

A curious little data leak, but one I struggle to care about. Perhaps useful for a bit of fingerprinting? Websites can access your system's camera and microphone. That's how modern video conferencing works in the browser. In an effort to retain user privacy, the browser asks the user for permission to use the camera and mics. No audio or video will be sent until the user agrees. But some…

Book Review: Privacy is Power - Carissa Véliz

· 1 comment · 350 words · Viewed ~406 times


Book Cover.

Without your permission, or even your awareness, tech companies are harvesting your location, your likes, your habits, your relationships, your fears, your medical issues, and sharing it amongst themselves, as well as with governments and a multitude of data vultures. They're not just selling your data. They're selling the power to influence you and decide for you. Even when you've explicitly…

Review: eufyCam 2C Wireless Home Security Camera System

· 3 comments · 750 words · Viewed ~430 times


Flyer explaining how Eufy is different.

I hate the Internet of Things. It's a load of overpriced junk, which abuses your privacy and demands a monthly fee in return. That's why I was pleasantly surprised to see this fall out of the eufyCam 2C box. There's no monthly fee. The recordings stay in your home. The batteries last for ages. I can get on board with this! The package costs around £220 (discount of £40 if you use my code) and …

I have 4% 2FA coverage

· 2 comments · 300 words · Viewed ~371 times


A long list of 2FA tokens.

Last year, when doing some digital spring-cleaning, I realised that I had 800 different passwords. I tried going through them, removing long-dead websites, closing old accounts, and deleting anything incriminating. I now have 891 accounts. Arse. I also went through my 31 different 2FA accounts. Getting rid of old employers' email tokens, failed crypto wallet providers, Club Penguin etc. I…

More Phishers On Twitter

· 5 comments · 700 words · Viewed ~1,368 times


A Twitter exchange. Virgin ask Dom for his address - which he gives. Then they ask for his full credit card details. He refuses.

My mate Dom was moaning to his ISP on Twitter. They sent him a private message so they could look into his account. Blimey! Thankfully, that was a pretty brazen and inept attempt at phishing. Anyone asking for all your card details like that should set the alarm bells ringing. Of course, phishers often target credulous people who don't understand that they're being scammed. By sending an…

"file:///C:/users"

· 450 words · Viewed ~3,457 times


List of Tweets where people have pasted a link to their local machine.

Once in a while, I'll see someone Tweet a "link" to file:///C:/users/... - that's the Microsoft Windows way of representing a location on a filesystem. Usually this means that the user has tried to either drag 'n' drop something, or copied a link from their file explorer. There are some (mild) infosec risks you should be aware of. Find local user names - this shows you what their username is…

GDPR and common sense

· 3 comments · 400 words


Some giant question marks standing in a field. Photo by https://www.flickr.com/photos/dbrekke/181939582/

Every so often, I get a glimpse into the thought processes of someone who has a very different view of the world to me. I don't deal with people's personal information often. So I was surprised to receive an email with a multi-megabyte spreadsheet called "Pay and Bonuses 2020". The email contained this doozy of a sentence: “Due to GDPR the attached file is password protected, I will send the p…