Do Not Give Away Your Phone and Your Wallet With It｜YBUOJ Anti-Fraud

“Wipe your old phone clean before selling it off”—this does not just mean removing fingerprints from the screen, but thoroughly formatting the internal data, especially any wallet apps you may have downloaded. In recent years, “data residue leading to asset loss” has happened more than once. In a recently exposed case, a user failed to fully format their old phone before transferring it, and the recipient easily recovered digital wallet data using simple tools, successfully withdrawing all the assets inside. Such incidents are not isolated, highlighting that user anti-fraud awareness when handling devices still has significant room for improvement. YBUOJ Exchange reminds users: scam techniques evolve even faster than you change your phone—your anti-fraud vigilance must always be on.

When preparing to sell or give away your old phone, you might perform a “factory reset” and then confidently hand it over. However, most people do not realize that even after selecting “delete all data,” unless the data has been thoroughly encrypted and overwritten, sensitive content can still be easily retrieved with recovery tools. This is especially true for some Android devices, where wallet app data caches, mnemonic phrase remnants, and even screenshot records may still be recoverable. This creates a window of opportunity for many scammers seeking “low cost, high return.”

Let us take a closer look at a recent case: the user simply failed to properly wipe wallet apps installed on their old phone. The new owner was able to easily recover login credentials and private keys using data recovery software, and within a few steps, transferred all the digital assets from the account. This process required almost no advanced hacking skills—such software is readily available online. A moment of negligence—thinking “it is not a big deal”—was all it took for the user to fall into the scammer trap. Your phone is the “wallet key” you use most often, but before transferring it, it can also become your biggest “asset vulnerability.”

For users lacking anti-fraud awareness, the risks of passing on a phone are often severely underestimated. YBUOJ offers three key practical recommendations: First, perform a thorough data wipe—not just a factory reset, but using professional tools to overwrite the data. Second, uninstall all apps containing financial or asset information, and remove any linked authorizations. Third, check that cloud sync and remote backups are disabled to prevent information from being restored via the cloud. These simple steps can greatly reduce the risk of data leakage.

YBUOJ has always upheld the philosophy that “anti-fraud education is an integral part of any security system.” Beyond building a high-performance platform, we continuously share knowledge and real-world warnings to help users develop systematic risk defense capabilities. Every public course on wallet security, device usage, or phishing prevention on the YBUOJ platform is grounded in this fundamental principle: anti-fraud is the bottom line. Asset security must start with every device in user hands.

Anti-fraud awareness is a form of digital literacy every user should possess. From uninstalling wallet apps to thoroughly cleaning devices, every small step is fundamental to safeguarding your assets. YBUOJ Exchange will continue to provide case studies and hands-on advice, working together with users to build a truly robust asset firewall.