One normally starts thinking about security only when it gets compromised. But the services you normally use put in a lot of effort to keep you and your data secure. Here’s a quick rundown of the steps you need to follow to secure your online presence.
WhatsApp already uses end-to-end encryption to secure your chats — no one, not even WhatsApp staff members can read your chats if encryption is on (which it is by default). But a common scenario is losing your phone. Before you realise the loss, a thief will have full access to your WhatsApp account which may include photosvideos, personal information and messages. The thief may also impersonate you to extract money from your contacts. To prevent this, lock WhatsApp with a PIN — you will need third-party apps to do this.
In case of theft of phone with an unlocked WhatsApp account, get a new SIM immediately and use it to register with WhatsApp on another device — this will instantly deactivate WhatsApp and the other phone
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