tkems

Joined 10 years ago

Karma
479
Submissions
59
Member since
Aug 22
[ my public key: https://keybase.io/tkems; my proof: https://keybase.io/tkems/sigs/J855-TsekXzOE90xlOemdLwBwo75MEstw3kzgnlDEbk ]
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Recent submissions

Comment · 7 months ago
Comment · 1 year ago
I can confirm that Aliexpress doesn't allow me to checkout with a USA address and states that items can't be shipped to my region. -edit: Since this post it seems that I can order items again? Very odd.
Comment · 1 year ago
I was shocked when I purchased a domain recently on GoDaddy (I normally use Cloudflare or AWS) and noticed that they have an 'upsell' with more security options (MFA and some other features) for something like $10/yr. Why wouldn't they want their customers to be more secure by default? To me it just reeks of money-grabbing for people that are none the wiser.
Comment · 1 year ago
Comment · 2 years ago
Yes, RF (radio frequency) remotes I've seen include my garage door opener, some overhead fans in bedrooms, gates, remote outlet/light controllers.
Comment · 2 years ago
Comment · 2 years ago
As someone in cybersecurity, it is handy as a low frequency RFID reader as Android phones only support higher frequency. Having something compact and in a single unit (compared to a Proxmark) makes it easier to 'grab-n-go'. It is neat to show people how insecure common access control systems are.

I've also used it as a universal remote more than a few times on devices that didn't come with a remote. The App running on a phone makes it somewhat easy to transfer new remote templates to the Flipper over Bluetooth.

It also comes in handy as a serial adapter as it has GPIO pins you can connect to things (UART headers).

The RF transceiver is also cool to capture RF remotes (garage doors, overhead fans, etc.) and replay them.

Comment · 2 years ago
This is a great run down of the process to extract the firmware from these types of devices without desoldering the flash. I've done a fair amount of reverse engineering and a lot of devices have similar vulnerabilities.

I think more time needs to be spent looking into these commonly used, cheap IoT devices and educating consumers on the risks of using a poorly secured device on their network.

The upside of these vulnerabilities is that you can run your own code on these! 'Declouding' is great as it can extend the lifetime of these devices and make using them more private.

Comment · 2 years ago
With Google Wallet (the only one I have at the moment), it is not static for the ticket. It has a NFC and barcode option. The barcode changes every 15 seconds for me.
Comment · 2 years ago
I just added a ticket to my Google Wallet for a concert last night and it was very similar to the Ticketmaster/LiveNation app. The PDF417 barcode changed and had an animation around it. My guess is that it is the same or very similar on Apple devices.
Comment · 2 years ago
One issue I have with the Flock cameras installed in my city is that they are installed on public land (right next to the road) and paid for with tax dollars.
Comment · 2 years ago
One of the Flock cameras was installed in my city nearby where I live. Once I noticed it, I thought it was a red light camera at first since it was near an intersection.

I did some research on them and found that they are completely wireless (cellular network most of the time) and powered by a 65w solar panel. Since they capture every license plate that passes by, I wasn't thrilled it was a private company keeping the data, even if they say they only keep it for 30 days.

I did a FOIA request with my city to see how many are in use and their locations to share with my community. I also plan on asking why my city thinks it is a good use of tax dollars. I think it should be a requirement for cities to disclose their use since it is a private company installing private equipment (and a camera at that!) on public land to monitor the public.

Comment · 2 years ago
If banks would spend money on this and not enabling support for hard to phish MFA options like hardware keys (FIDO2), I would change banks.

We have solutions to most of the phishing attacks, but most people find them hard to use or don't want to use them as they are seen as not important. I've made comments to several companies that SMS or TOTP based MFA is not phish-proof and that they need to implement something stronger, but it often is ignored.

Comment · 2 years ago
Wow, I just submitted the consumer disclosure report this morning after finding out about it from somewhere else. I am VERY interested to see if anything is reported from my car since I don't have any of the addons/monthly fees.

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