Here is another rewritten version with a more concise, publication-style approach:
A bitcoin wallet that had been inactive since 2013 moved 500 BTC worth roughly $31 million on Monday, joining a broader wave of dormant bitcoin activity that has emerged following the Coldcard wallet exploit.
The 12-year-old wallet, identified as 18TExP, transferred its entire balance of 500 BTC in a transaction first detected by blockchain tracker Whale Alert. When the coins were last moved in 2013, they were worth approximately $500,000.
A wallet becoming active after years of dormancy does not reveal the reason behind the transaction. It only shows that the holder controlling the private keys decided to move the funds after more than a decade of inactivity.
However, the timing has attracted attention. The transfer occurred while the crypto community was responding to the ongoing Coldcard security incident, leading some analysts to suggest the move may have been a precautionary migration to a safer wallet.
Blockchain analytics firm Lookonchain noted that the wallet transferred all 500 BTC, worth about $31.27 million, to a new address after more than 12 years of inactivity, suggesting the owner may have acted due to concerns surrounding the Coldcard hack.
The security incident began on July 30, with attackers reportedly draining bitcoin from wallets created using certain Coldcard configurations. The vulnerability is linked to firmware dating back to 2021, and researchers at Galaxy estimate total losses from the exploit have reached around $130 million.
The attack has also affected confidence in self-custody solutions, with some market observers pointing to increased bitcoin exchange inflows as users reassess wallet security.
More Dormant BTC Begins Moving
The 500 BTC transfer was not the only sign of renewed activity among older bitcoin holdings.
Data from CryptoQuant’s spent output age bands, which tracks bitcoin movements based on how long coins remained untouched before being spent, showed a significant increase in older coin activity around the same period.
Bitcoin that had remained dormant for at least 10 years recorded roughly 935 BTC in movement on August 3, marking the largest single-day total for that group since March 20. Coins that had been inactive for five to seven years saw an even larger surge, with approximately 6,388 BTC moving on July 31.
Dormant bitcoin transfers can occur for many reasons, including inheritance transfers, exchange wallet restructuring, custody migrations, or routine asset management. Such movements do not necessarily indicate a connection to any specific security event.
Still, the concentration of large, long-dormant bitcoin transfers shortly after the Coldcard exploit has fueled speculation that some long-term holders may be moving funds proactively to strengthen their security.
