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imBack Crypto Asset Recovery Service

Service Scope

Successful Cases

The cumulative crypto assets imBack has helped clients recover (valued at hundreds of millions of USD at current market prices):

  1. iPhone UnlockBTC Recovery

    Liquid Capital Founder Jack Yi · BTC Recovered From an iPhone Locked for 8 Years

    Jack Yi is an early OG of China's crypto community and has invested in hundreds of blockchain projects since 2015. He owned an iPhone locked for 8 years that stored early-purchased BTC and wallet apps such as imToken, Bitpie and Kcash. Too many wrong password attempts had permanently "bricked" the device, and he had long given up hope of recovering the assets.

    As "one of the few teams capable of handling this", imBack's hardware lab successfully unlocked the device and recovered the BTC once thought lost forever. Based on this firsthand experience Jack Yi quickly made a strategic investment in imBack. The story was reported by Binance Square, ChainCatcher, KuCoin News and other major media.

    imBack official tweet - iPhone unlocked, BTC recovered
    imBack official tweet @imBackCN: iPhone went from "Disabled" to successfully unlocked
    JackYi tweet confirming BTC recovery
    Jack Yi @Jackyi_ld: confirmed the BTC recovery and announced his strategic investment in imBack
    imBack helped me recover a wallet I had long written off. Amazingly @imBackCN actually opened my iPhone that had been locked for 8 years — getting the BTC back was a complete surprise... imBack really does have core technology. Anyone who wants to recover coins they thought were lost can reach out to imBack. — Jack Yi, Founder of Liquid Capital
  2. MultiBitPassword Cracking

    MultiBit Wallet Password Forgotten · BTC Dormant for 12 Years Recovered

    The client stored BTC in a MultiBit wallet back in 2013 but forgot the password, leaving the assets dormant for 12 years (admittedly resulting in an accidental HODL).

    The case took about a year from intake to success. imBack's team tried many approaches and poured in significant compute, finally breaking through after upgrading the password derivation engine.

    MultiBit wallet BTC transaction history 2013-2025
    BTC transaction history after recovery of the MultiBit wallet (2013–2025)
    We just upgraded the password derivation engine a few days ago and tried it on some old cases — sure enough, we got results. Continuous learning and iteration really matters. — imBack Team
  3. imTokenHeavy Compute

    imToken Wallet Password Recovery · The "Drunk Password" Set on World Cup Night

    Over drinks during the World Cup, the client set a 15- to 16-character imToken password and couldn't remember a thing the next day. The password bore almost no resemblance to any of the hints the client could provide.

    imBack brought heavy compute to bear and eventually cracked this complex password that was "almost unrelated" to any lead, recovering all the assets in the wallet.

    imToken wallet account activity
    imToken wallet account activity after successful recovery
    A word of advice: only set passwords and do other sensitive operations while you're sober! — imBack Team
  4. imToken 1.5Japan Client

    imToken 1.5 Japanese Client · An 8-Year Unsolved Case, Finally Cracked

    A Japanese client's imToken 1.5 wallet had an issue. The client and a series of other technical teams worked on it for 8 years without success.

    Leveraging deep understanding of wallet internals, imBack's team cracked this 8-year-old unsolved case.

    Sometimes a client's recognition feels even more rewarding than the revenue itself. — imBack Team
  5. Hardware WalletChip-Level Recovery

    ColdLar Hardware Wallet · Chip-Level Data Recovery

    The client held crypto assets on a ColdLar hardware wallet that could no longer be accessed normally.

    imBack's hardware security lab successfully read the data from the chip and recovered the encrypted files, returning all of the assets to the client.

    ColdLar hardware wallet - chip-level data recovery
    The ColdLar hardware wallet after successful recovery (Bitcoin shield insignia)
  6. TokenPocketUSDT

    TokenPocket Wallet · USDT Recovered on iPhone 15

    The client had installed TokenPocket on an iPhone 15 and held USDT in it, but forgot the transfer password. imBack once again demonstrated industry-leading capability and recovered all of the USDT in the wallet.

  7. iOS TestFlightPrivate Key Recovery

    iOS TestFlight Wallet Crash · iPhone Data Extraction and Private Key Recovery

    Years ago the client installed a wallet app via iOS TestFlight and created a BTC wallet. After the public release, the old TestFlight build crashed on launch, trapping the assets inside an app that could no longer be opened.

    imBack used iPhone data extraction + cryptographic reverse engineering + hint-based brute force to recover the private key and free the long-trapped BTC.

    TestFlight wallet account activity
    Wallet account activity after recovery (multiple deposits in 2022, successful withdrawal in June 2025)

The above is only a selection of our cases. For more success stories, please contact us via Telegram @www_back_im — verification is welcome.

Our Advantages

Asset recovery is a struggle with mathematics, time, cost, and human behavior; like any battle, tactics are constantly evolving.

Contact

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b@back.im

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@www_back_im

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@imBackCN