CIA Officer Profile picture
Oct 15 7 tweets 2 min read
Surprisingly few people know that anyone can effectively defend against sim swapping. It works both in the US and worldwide in almost all mobile operators!

But how? Check out my thread 👇
1/5

To lock down your SIM, contact your mobile phone carrier. Ask them to NEVER make changes to your phone number/SIM unless you physically show up to a specific store with at minimum two forms of identification.
2/5

This (should) prevent hackers from calling up AT&T or T-Mobile or Vodafone, claiming to be you, and asking them to port your phone number to a new phone.
3/5

Living in Germany? You have a unique opportunity to become your own mobile operator for only 10k and issue your own SIM card! And also control the SS7 gateway - which will increase your security. This is not relevant to the topic of our conversation, but as a matter of fact.
4/5

Follow my #OpSec Guide - Rule No.3

github.com/OffcierCia/Cry…
Last but not least, never link phone numbers to crypto platforms. Use trusted multiple e-sims if you have to link the phone!

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More from @officer_cia

Oct 17
Many of us travel by airplane and many of us have to deal with carrying luggage. That's a pretty serious threat to your #OpSec unless of course your computer or phone has potentially valuable information on it.

Read my thread ⬇️
1/5

And if you don't fly, you probably travel from point A to point B in some other way - by car, train, and so on.

First of all, try checking out slnt.com/products/ally-… or any custom-made Faraday bag.
2/5

Transfer all important information to physical form. Steganography and cryptography work better when used together!

hackernoon.com/a-cia-agents-g…
Read 6 tweets
Oct 14
What an awesome tactic been used to catch a bad actor in @Tesla!

There are also amazing tools for it, for example: github.com/utkusen/wholea…

And ofc myy fav canary trap service - canarytokens.org
Follow my #OpSec Guide github.com/OffcierCia/Cry… & tips from my officercia.mirror.xyz blog!

Stay Safe!
But how can whistleblowers protect themselves from this?

officercia.mirror.xyz/8ecJG-s_5E6J1t…

Cryptography + Steganography would be a good solution IMO
Read 4 tweets
Oct 6
Researchers have detected an unusual transaction of $718M $ on the BSC network, the meaning of this is not clear at the moment, but many are already talking about a possible hack 🤷‍♂️

bscscan.com/address/0x489a…
However, until official statements are made, it is unlikely to be possible to establish this - due to the technical side of the issue!

Source 1:

Source 2:
718M $ including:

1,04М BNB
$389М in venusBNB
$28.8М BUSD
Read 18 tweets
Oct 3
Greetings, dear readers! Today is the second article in the series about the auditing tips we do at @pessimistic_io 🙂

As usual, nothing superfluous - only important information!

blog.pessimistic.io/fuzzing-solidi…
If you have wanted to become an auditor for a long time but do not know where to start - visit @pessimistic_io blog, soon there will be many articles that will help you in your education!

blog.pessimistic.io

Check out my own blog as well: officercia.mirror.xyz 🙂
Did you like the article? What do you want to read more about? Feel free to DM/Reply ❤️
Read 4 tweets
Sep 29
Spotted an awesome dedicated VM for Blockchain security created by @HalbornSecurity🫡



Inspired by @kalilinux 😎
More than half of auditors can't figure Slither out and give it up, if used properly, it's a real auditor's Swiss pocket-knife! Suggest checking out my article as well!

blog.pessimistic.io/slither-an-aud…
Btw, in @pessimistic_io we have released pretty awesome public reports, check them out to get the methodology of audit:

github.com/pessimistic-io…
Read 4 tweets
Sep 29
🕊 In this difficult time it's hard to think about anything but global problems, but… I do want us to have something to distract ourselves with, so nothing in my blog will change in terms of content in the near future!

Thank you very much for your attention and take care 🕊
I get asked a lot and I'd like to say it again…

My position: I am 100% pacifist, anti-war, pro-humanity, pro-human-rights.

Mixed (moderate) political views. I love all people.
P.S. New articles 🔜
Read 4 tweets

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