Tom Caliendo

Washington, D.C., United States

a how-to book about Internet Sleuthing #TheOsintGuide (also check out https://t.co/7mnJ00K6ER) - (I am also NOT @tomcaliendo, but we share a name)

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Articles

What OSINT Researchers Can Learn from Newly Surfaced Data Breaches

Oct 30, 2024 | theosintguide.com | Tom Caliendo

Data breaches are an unfortunate reality for many websites, leading to leaked information often posted on dark web forums or discovered by security researchers. Before this data disappears or is removed, Data Breach Search Engines (DBSEs) gather, verify, and categorize it, making it accessible to people seeking to understand what information may have been compromised.
Crypto Investigations Blog

Oct 25, 2024 | theosintguide.com | Tom Caliendo

This comprehensive guide is designed to help investigators, analysts, and anyone interested in the crypto space navigate the complexities of tracing digital assets and uncovering the identities behind them. Whether you’re new to crypto or a seasoned investigator, I hope you’ll find valuable insights and practical strategies inside.
Python to Trace Cryptocurrency Transactions: A Step-by-Step Guide to Tracking Asset Flow

Oct 25, 2024 | theosintguide.com | Tom Caliendo

IntroductionTracing cryptocurrency transactions is a crucial skill for investigators, compliance officers, and anyone working in financial crime prevention. With blockchain technology, all transactions are recorded on a public ledger, making it possible to follow the flow of digital assets between wallets. However, the challenge lies in making sense of this data, linking transactions to real-world identities, and identifying potential red flags.
Analyzing Email Headers and Content Using OSINT Tools

Oct 22, 2024 | theosintguide.com | Tom Caliendo

Email header analysis is a crucial aspect of cybersecurity investigations, allowing professionals to verify the authenticity of email messages, detect phishing attempts, and identify malicious actors. This guide covers the entire process of analyzing email headers and bodies, extracting valuable information, and using various OSINT tools to investigate potential threats.
“According To A Study…”: The Art of Verification

Oct 5, 2024 | osintteam.com | Thomas Caliendo |Tom Caliendo

We’ve all seen those news stories with wild scientific claims backed by just one study or one so-called expert. It’s easy to get caught up in the excitement, but how do you know if what they’re saying is really true? Is the expert really an expert, and does the study actually say what the headline claims? In this article, I’ll show you some simple ways to check if the science behind the story holds up, so you can spot the difference between real discoveries and just another flashy headline.
How to Conduct Telegram Investigations Using OSINT

Sep 29, 2024 | theosintguide.com | Tom Caliendo

IntroductionIn today’s digital world, platforms like Telegram have become both hubs for open communication and spaces where criminal activities can thrive. Known for its strong privacy measures and user anonymity, Telegram has drawn the attention of law enforcement and cybersecurity experts alike, prompting a surge in Open Source Intelligence (OSINT) investigations on the platform.
OpenSanctions.Org: A Powerful PEP Tool for International Investigations

Sep 27, 2024 | theosintguide.com | Tom Caliendo

OpenSanctions is a powerful resource for investigators looking to research sanctions targets, politically exposed persons (PEPs), and entities involved in criminal or economic activities. It aggregates data from over 200 global sources, including official sanctions lists, PEP databases, and other public information. Here’s how you can use OpenSanctions to conduct investigations:1. Search for Individuals or Entities: The primary feature of OpenSanctions is its searchable database.
Exploring the ICIJ Offshore Leaks Database: Unveiling Hidden Global Wealth

Sep 24, 2024 | theosintguide.com | Tom Caliendo

The International Consortium of Investigative Journalists (ICIJ) Offshore Leaks database offers an unprecedented window into the opaque world of offshore finance. The database, built from five major leaks, exposes the intricate web of secret offshore entities, shell companies, and trusts that serve as vehicles for tax evasion, money laundering, and financial secrecy.
Ethereum Reboots Crypto Investigation

Aug 31, 2024 | secjuice.com | Tom Caliendo

At the risk of using and overused phrase, the Ethereum Blockchain "revolutionized crypto" by also being a virtual computer that can execute code. Ethereum gave us smart contracts and the ability to create NFTs, DeFi and so much else. In turn, this opened up a whole new world of opportunities for investigation. For crypto investigators, this is arguably akin to the change in OSINT before and after social media.
Investigation on the Ethereum Blockchain

Aug 3, 2024 | theosintguide.com | Tom Caliendo

This post walks through some foundational aspects of investigations on the Ethereum Blockchain, including researching an Ethereum address, smart contracts, and NFTs.Starting at the Etherscan.io main page, you can search an address in its search function and pull up a profile page for the address. At the top of the page we see the address’s Eth balance, the token holdings, and on the right under “Multi Chain,” it shows that the address is used (by the same owner) on 11 different block chains.