Chainabuse Report Incident Type: Investment Scam / Advance-Fee Fraud / Cryptocurrency Fraud Description I am a 63-year-old senior citizen and believe I was the victim of a cryptocurrency investment fraud involving Alpha Stock Investment Training Center and Coinbridge Partners Ltd. In February 2025, I entered a 90-day investment training agreement with Alpha Stock Investment Training Center. The program provided online investment classes and cryptocurrency trading signals through a training assistant identified as Quinn Sanderson. Participants were instructed to transfer funds into the Coinbridge platform for cryptocurrency contract trading. Between February and May 2025, I transferred approximately $467,084.17 from my checking account through Coinbase and into Coinbridge accounts for investment purposes. At the conclusion of the program, Coinbridge represented that my account balance had grown to approximately $3,098,711.50. Before permitting withdrawal, I was required to pay a commission of $338,963, which I paid in full. After payment of the commission, I initiated a withdrawal of $2,861,113.27 to my Trust Wallet: 0x4B3441b11B3be6263b25becad938d5142CBA521B The withdrawal was never completed. I contacted Coinbridge customer service and was informed that I was required to pay additional "gas fees" totaling $63,180.75 before my funds could be released. This requirement was not disclosed in the investment agreement. I was instructed to send the gas fees to the following address: USDC Base Wallet 0x51f21d3ced26eb0d691826404a3384ba409149dd I paid the requested amount in three separate transactions. After payment, the withdrawal still did not occur. Coinbridge representatives then claimed that my wallet address had been altered by a hacker and changed from: 0x4B3441b11B3be6263b25becad938d5142CBA521B to 0x4B3441b11B3be6263b25becad938d5142CBA521BV The representatives stated that this alleged alteration prevented delivery of my funds. On June 26, 2025, Coinbridge customer service demanded an additional $20,000 "hacker recovery fee" to be sent to: USDC ERC-20 Wallet 0xb69f6083f40ca2c82606e4cc0085464f3e55d434 I refused to pay the additional fee. Since refusing to pay, Coinbridge has continued to block all withdrawal requests and has not released any of my funds, cryptocurrency, or account balances. I also have approximately 40.96967449 ETH reportedly held in Coinbridge custody that I cannot access. I believe this operation used false investment profits and repeated demands for additional payments to prevent withdrawal of funds and induce further transfers from victims. Associated Wallet Addresses Intended withdrawal address: 0x4B3441b11B3be6263b25becad938d5142CBA521B Allegedly altered address: 0x4B3441b11B3be6263b25becad938d5142CBA521BV Gas fee wallet: 0x51f21d3ced26eb0d691826404a3384ba409149dd Recovery fee wallet: 0xb69f6083f40ca2c82606e4cc0085464f3e55d434 Estimated Loss Initial investment deposits: $467,084.17 Commission payment: $338,963.00 Gas fee payments: $63,180.75 Additional inaccessible crypto assets: 40.96967449 ETH Total direct losses exceed $870,000, with reported account balances and digital assets remaining inaccessible. Requested Action I request that blockchain investigators, exchanges, compliance teams, and law enforcement review and trace the wallet addresses identified above, identify any connected entities or exchange accounts, and assist with recovery efforts where possible.