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Officer's Blog

Jul 29

Rebase Tokens, Rounding Errors & DoS Attacks: Unraveling the Mystery

So today, we will examine the nature of the several bugs, their possible consequences, and the tactics that can be used to reduce similar risks in the future. Keep in mind. Vigilance and expertise are essential for protecting the assets of the decentralized economy in the Web3 world, where every line of code has the potential to be a double-edged sword!
Rebase Tokens: Bugs & LimitationsThese unique assets, designed to adjust their supply based on market conditions, can introduce complexities t...

Jul 25

Awesome Crypto Digest: July, Week 4

Made by: ddadybayo — research & strategy of unstoppablebyhs & officer_cia🔒 Protocols Are Fragile. Power Is Persistent. Here’s what the week revealed:
💣 Existential threat to Satoshi’s coins
A proposal to freeze quantum-vulnerable UTXOs — yes, including Satoshi’s — has hit GitHub. → [bip-post-quantum-migration]
📉 Crypto Crime: Mid-Year Stats Drop
Blockscope: $1.3B lost in 2025 H1
Elliptic: Cross-chain crime now dominant vector
QuillAudits: DeFi exploits surge via reentrancy, oracles → [Blockscope ...]

Jul 18

Awesome Crypto Digest: July 2025

Vulnerabilities, Arrests, and Big Bitcoin Treasury Moves
Made by: ddadybayo - research & strategy of @unstoppablebyhs & @officer_cia
The CPIMP Attack: $10M+ saved from mass proxy contract backdoor exploit. Whitehat operation by Dedaub. Deep dive → Bitcoin Depot Breach: 27,000+ users’ data leaked. Hack happened in 2024 — reported only now. More → BNB Chain MEV Drama: Builders openly engaging in MEV. Live issue: GitHub → USDT Blacklisting & Terror Links: BlockSec traces frozen Tether connected to illicit f...

Jul 16

Anti-Kidnapping Kit

In the world of crypto, digital security often takes center stage, but physical risks are increasingly becoming a harsh reality. Jameson Lopp, a prominent Bitcoin advocate and security expert, maintains a comprehensive GitHub repository documenting physical attacks on cryptocurrency holders. In addition to software safeguards, Lopp's work highlights the need for holders to prepare for physical confrontations, including putting together a "anti-kidnapping kit"—a collection of tools and strategies...

Jun 12

Unstoppable.money: The Ultimate Crypto Wallet for Privacy and Security

In the realm of cryptocurrency, privacy and security are crucial. While hardware wallets have long been regarded as the gold standard for protecting digital assets, Unstoppable is intended to challenge that perception with an incredible set of features aimed at keeping your assets secure and your transactions secret. One of the standout features of Unstoppable is its "Hide Suspicious Transactions" filter, located in the top right corner of the transactions page. This allows users to easily ide...

Mar 4

Switching to macOS? Here's Your Ultimate Security Guide!

With the rise in cyber threats on Windows, many are turning to macOS. If you're one of them, here's a comprehensive guide to safeguarding your device and enhancing your OpSec!

Getting Started
🔒 FileVault Encryption:
Activate FileVault to encrypt your entire system. It takes about three hours, so be patient.
Remember to jot down your recovery key on paper. FileVault is built-in, no downloads needed! It's akin to VeraCrypt/TrueCrypt/Bitlocker, so setup should be a breeze.

Feb 11

Safeguard Your OpSec with These Vital Tips

Greetings, Crypto Community! In this post, I’ll break down the potential risks you might face and the measures you can take right now to protect your digital assets.
Protecting Your Seed Phrases and Private Keys
First and foremost, as you venture into the crypto ecosystem or Web3 world, remember this crucial rule: never, under any circumstances, store your seed phrases and private keys as photos in your device’s gallery. This simple precaution can save you from a myriad of security breaches...

Feb 11

How to Protect Your Devices from Pegasus Spyware: Essential Countermeasures and Best Practices

I see news about SpyWare all the time in the last couple of years... people are really worried about Pegasus and other similar apps. In recent years, the headlines have been dominated by reports of sophisticated spyware applications, with Pegasus being one of the most concerning. Here's a comprehensive guide on how to detect and defend against spy apps on your mobile device.

Nov 28

New Theory by BTCparser: Who Might Be the Real Satoshi? Answering the Question of Why He Never Touched His 2009 Bitcoins!

GM! Spotted a New Theory by BTCparser.com! The search for Satoshi Nakamoto has captivated the crypto community for over a decade. Speculation has swirled around figures like Dorian Nakamoto, Adam Back, Hal Finney, and even a few self-proclaimed Satoshis. Researchers often rely on technical skills or linguistic clues to propose candidates. Yet, despite these efforts, Bitcoin’s elusive creator remains a mystery. As a blockchain researcher, I’d like to propose an alternative theory—one grounded in...

Nov 8

My Web3 Security & Privacy Stack

As the Web3 landscape continues to evolve, so does the need for robust security and privacy measures. With the promise of decentralization comes the responsibility to protect our digital identities, assets, and interactions.
GitHub - OffcierCia/Crypto-OpSec-SelfGuard-RoadMap: Here we collect and discuss the best DeFi, Blockchain and crypto-related OpSec researches and data terminals - contributions are welcome. Here we collect and discuss the best DeFi, Blockchain and crypto-related OpSec resear...

Oct 23

Variant Analysis & Glider Tool

Variant analysis is the foundation of a transformative approach to Web3 security exploration, and its importance cannot be underestimated. Variant analysis, commonly used in open-source smart contracts, uses a known issue, such as a crashing bug or security vulnerability, to identify additional occurrences (or “variants”) across the Web3 landscape. Have you ever discovered a vulnerability and wondered, “Are there any other contracts deployed that have the same vulnerability?”

Oct 23

Modern Defense Tactics in the Cryptocurrency Sector: 5 Simple Suggestions

Modern Defense Tactics in the Cryptocurrency Sector: 5 Simple Suggestions The significance of security changes along with the cryptocurrency landscape. Understanding contemporary defense strategies is essential for protecting your digital assets from threats that range from phishing scams to highly advanced malware. We'll look at a number of essential elements in this post to improve the security of your cryptocurrency, such as the best devices, wallets, two-factor authentication (2FA), t...

Officer's Blog

Written by
Vladimir S.

Threat Researcher & Author

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