Terence Eden. He has a beard and is smiling.

Terence Eden’s Blog

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Full Disclosure - This Bluetooth tag is leaking your personal data

· 3 comments · 500 words · Viewed ~610 times


If you have a TingTag, your location is being broadcast without encryption! Earlier this year I purchased and reviewed the TinTag. I've spent the last month trying to get hold of the company to report a serious privacy problem with their Android app. I've not received an adequate response, so I'm publishing this post to let affected users know about the issue. The TinTag is a BLE tracker. …

Should you open your WiFi during a disaster?

· 1 comment · 700 words · Viewed ~341 times


Graphic from the Italian Red Cross urging people to open up their WiFi.

There has been a terrible natural disaster in Italy. A huge quake has broken a city. Rescue teams race to the scene to try to save lives and stabilise the situation. During the rescue efforts, the Italian Red Cross sends this tweet: Croce Rossa Italiana@crocerossa#Terremoto, per favorire comunicazioni e operazioni di soccorso vi invitiamo a togliere la password della rete wi-fi…

How *not* to do a password change page

· 3 comments · 200 words · Viewed ~423 times


We've all been faced with this screen, right? You haven't logged in to a website for a while, so it prompts you to change your password. sigh Annoying but probably necessary. The problem was, every time I tried to change my password, it told me that my old password was invalid. The one that I'd just used to log in. I use the incredible LastPass Password Manager - so I knew I wasn't typing…

PayPal doesn't care about 2FA security

· 3 comments · 400 words · Viewed ~1,472 times


Remember when PayPal was a cool new company dedicated to radically improving online payments? Seems like it was ages ago. Now PayPal is little better than then bloated banks it sought to overthrow. Arcane bureaucracy, impenetrable fees, and a lamentable approach to security. I was minded recently to switch on 2-Factor-Authentication (2FA) for all my accounts. Whenever I want to log in, I give …

Disclosed - Lifx Security Issue

· 650 words · Viewed ~1,206 times


I love my Lifx Bulbs. They're a quick and easy way to retrofit Internet connected goodies into a smart-home. One of the best things about them is their open API. Sure, you can use IFTTT if you want something easy - but us 1337 hax0rs want an API and Lifx provides it. The API is pretty secure - good use of OAuth and tokens to make sure whatever you're building is resistant to infiltration. I…

Designing a Home Network for Hostile Devices

· 16 comments · 700 words · Viewed ~15,326 times


I've written before about just how many Internet connected gadgets I have. I've also blogged about my dodgy WiFi lightswitches which send data back to China. Every IoT device you put in your home brings a certain level of risk to the other devices in your network. For example, my Smart TV and my Lifx don't require a password to access. Any device on my network can control them. That's…

Minimum Viable XSS

· 400 words · Viewed ~3,268 times


Update! I now have an XSS which is only 18 characters! Here's a fun little game for all the family! What is the minimum number of characters required to perform a successful XSS attack? Let's take an entirely theoretical example - suppose we have a site which echos back user input without sanitising it. So a search for " <em>" turns the whole page italic. ahem A hacker might think, "Hurrah! …

BMW are sending their software updates unencrypted

· 7 comments · 950 words · Viewed ~15,737 times


The BMW i3 is an amazing electric car - let down by very shoddy software. That's a huge problem - software runs our lives and, if it is defective, it can ruin us. We used to have separate categories of device: washing machines, VCRs, phones, cars, but now we just have computers in different cases. For example, modern cars are computers we put our bodies in and Boeing 747s are flying Solaris…

Responsible Disclosure - XSS Flaw at LetsSaveMoney.com

· 250 words · Viewed ~407 times


Another day, another bug! LetsSaveMoney.com is a "money saving" site. It offers discounts on a wide range of products and services, and is financed through affiliate marketing. Links removed, because the site has disappeared. My Trade Union, Prospect, has just launched a white-labelled "Members' Rewards" based on LetsSaveMoney - that's how I came across this bug. It's a depressingly familiar…

PGP Encrypt Twitter DMs with Keybase

· 1 comment · 850 words · Viewed ~990 times


This is a quick tutorial on how to encrypt your Twitter messages using PGP with the help of Keybase.io. I read an article yesterday which seemed to imply that Twitter was mangling PGP encrypted messages (albeit unintentionally). There is a minor bug in Twitter's web interface - but PGP seems to work perfectly in apps. So, I want to demonstrate how it can be done successfully. I've written this …

Web Based OAuth Is A Security Nightmare For Apps

· 4 comments · 750 words · Viewed ~1,216 times


Twitter have just released Periscope for Android. I'll do a full review of it later (tl;dr it's Qik with worse resolution) - but for now, I want to focus on the sign up process. You can only sign in with Twitter. That's fine, it's a Twitter product. So I pressed the sign-in button and this is the screen I saw. Is that the Twitter mobile website embedded into the app or is it a phishing…

Don't Use Bit.ly To Advertise Your PGP Key

· 2 comments · 650 words · Viewed ~2,886 times


I had dinner with the outgoing editor of The Guardian the other night. Clever chap, sure he'll go far in life. The Guardian is very hot on security. Many of their writers have PGP keys which they publicly advertise. In theory, that's great (complaints about PGP notwithstanding) - but the reality shows just how tricky it is to act in a security conscious manner. Have a look at Alan's Twitter…