What is a hot wallet?
DefinitionA hot wallet is a crypto wallet whose private keys are stored on a device connected to the internet, such as a mobile app, desktop app or browser extension. It is convenient for everyday payments but more exposed to online attacks than a cold wallet.
How a hot wallet works
A hot wallet works by keeping your keys on the same device you use to go online, so it can sign and send a transaction in seconds. Mobile wallets, desktop wallets and browser extensions are all hot wallets, and exchange accounts are custodial hot wallets run by a company.
The convenience is the point: you can pay a shop by QR, receive from a friend or swap tokens without plugging in a separate device.
The main risks of a hot wallet
Because the device is online, a hot wallet faces threats that a cold wallet does not:
- Malware that reads the screen, swaps copied addresses or steals stored secrets
- Phishing sites and fake “support” agents asking for your recovery phrase
- Fake copies of wallet apps distributed outside official sources
- A lost, stolen or rooted phone with weak screen locking
How to use a hot wallet safely
A few habits remove most of the risk:
- Install the app only from its official website or store, and check the address bar.
- Write the recovery phrase on paper; never photograph it or store it in the cloud.
- Lock the wallet with biometrics or a PIN, and keep your phone updated.
- Check the full address and the network on the review screen before you confirm.
- Keep everyday amounts in a hot wallet and long-term savings in cold storage.
Waletifi as a hot wallet
Waletifi is a hot wallet, because it runs on a phone that connects to the internet, and it is built to reduce that exposure. Keys are encrypted with a hardware-backed key in the Android Keystore (StrongBox when available) and unlocked by fingerprint or PIN. Phrase screens block screenshots, the phrase is never put on the clipboard, copied addresses are cleared after 60 seconds, and rooted phones get a warning.
