Coinbase txid used as private key sparks BTC bot RBF war now

Automated bots instantly drain Bitcoin sent to wallets with exposed or predictable private keys — including one derived from a coinbase txid.

Summarize the article from Coinbase txid used as private key sparks BTC bot RBF war now

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Yesterday, someone sent Bitcoin (BTC) to a compromised wallet that used the transaction identifier (txid) of a coinbase block reward as a private key. Incredibly, the txid of the coinbase of block 924,982 is the private key of a wallet.

A bot feeding frenzy commenced.

“I’d really like to know why that happens,” wrote an observer. “Some people have said they throw little amounts occasionally to see the bots fighting, but why the bigger amounts?”

In this context, “bots fighting” refers to computer programs connected to a memory pool (mempool) of pending BTC transactions.

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Automatically sensing a deposit into a compromised wallet, bots will immediately broadcast replace by fee (RBF) transactions to outbid one another’s fees to miners for a withdrawal transaction.

The spectacle of watching greedy bots broadcast a stream of increasingly aggressive RBF transactions has some entertainment value.

“Sometimes I send small transactions to compromised wallets, just to see the beauty in this automated RBFs,” commented one hobbyist after a similar incident in November 2025.

On that day, someone recklessly spent $70,000 to the public key of a non-random private key.

“It happens immediately, these nodes ain’t sleeping,” the hobbyist explained with glee. “The software will literally RBF ’em down to a single sat tx, child will literally pay 99.9% fees… it’s beautiful.”

Read more: 402bridge private key leaks, 227 wallets drained in minutes

Bots will happily steal all deposits to compromised wallets

Obviously, a private key is the most important piece of data to store securely in order to protect BTC. Leaking it or any type of common data that allows a Hacker to derive it often results in immediate theft.

Many, but not all, of the most popular wallets with non-random private keys have seed phrases with predictable patterns, such as the words “password,” “bitcoin,” “rocketman” repeated 12 times, or the word “abandon” repeated 11 times.

Any non-random pattern lacking true entropy can expose a private key and allow bots to immediately drain any deposit to its public key.

As yesterday’s incident illustrates, non-randomness can also take the form of public information on the Bitcoin ledger, including the txid of a block reward.

Indeed, failure to introduce mechanical entropy when generating a private key can allow brute-force attacks and compromise the security of funds.

Moreover and with particular relevance to yesterday’s loss, hashing a private key via a txid does not add sufficient entropy for the safekeeping of private keys. As these unfortunate incidents illustrate, miners and other mempool observers can surveil txids for non-randomness and try to quickly broadcast a theft transaction using the underlying, exposed private key.

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for internal reference, then write a NEW and UNIQUE news article using the same facts but with fresh wording and structure.

PART 1: WRITING STYLE

– Tone: Objective – Strictly factual without personal opinions.
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– Avoid fancy words or industry jargon
– Use a straight journalistic writing style – focus on delivering facts clearly and objectively.
– Write in active voice.
– Keep the writing direct and to the point.
– Neutral – Presenting facts without taking sides.
– No commentary about sources or backstories about where the article came from

PART 2: ARTICLE STRUCTURE:

1. DO NOT INCLUDE ANY HEADLINE (skip directly to the key takeaways section)

2. KEY TAKEAWAYS SECTION:
– Create a summary box with 5 bullet points that capture the main insights from the article.
– Format as:

  • First key point.
  • Second key point.

3. ARTICLE BODY

– First paragraph: Start with the core facts (who, what, when, where, and why). No analysis or background.
– Second paragraph: Add figures, developments, or official statements.
– Third and fourth paragraphs: Include more data, quotes, and attributions from the source.
– Following paragraphs: Provide context, historical background, or expert input if present in the original.

4. FORMATTING RULES:

– Format important names/companies in bold using tags.
– Format quotes in italics using tags (only direct quotes from original content).
– Explain technical terms briefly for clarity.
– CRITICAL REQUIREMENT: PRESERVE ALL EXTERNAL HYPERLINKS from the original content by placing them on relevant anchor texts in your rewritten article.
– Keep paragraphs short—ideally 2–3 sentences per paragraph. Break up long blocks of text to improve readability.
– Keep total word count under 500 words.

PART 3: FACTUAL AND QUALITY REQUIREMENTS

– Do NOT invent, fabricate, or assume any quotes or facts not in the original
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– IMPORTANT: Your response must include only the transformed article—do not add commentary, notes, or mention these instructions
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– Convert all foreign currency amounts into U.S. dollars, using the most recent exchange rate available in the source.
– Avoid using regional currency terms like rupees, lakhs, or RM—unless also paired with a USD equivalent.
– Round values to a reader-friendly format (e.g., “$1.5 million” instead of “$1,476,203”)

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