Computer security is something that has been of great concern since telephones and computers began to be used around the world. WhatsApp It is one of the most used applications, and it was updated to include the best possible encryption in your chats. Messages are now sent encrypted from the source and are not decrypted until they are received on the recipient's device.
WhatsApp has collaborated with a company specializing in security to develop this system, which is natively integrated into the app. Although it originally started on Android and has gradually expanded, today is available on all platforms on which WhatsApp operates. This new feature was especially important because, despite being one of the most popular apps, chats were not previously protected with end-to-end encryption. It is not necessary to install Beta versions: Just keep the app updated to enjoy these improvements.
What is end-to-end encryption on WhatsApp?
When we talk about end-to-end encryption, we are referring to the fact that Chat content is protected with cryptographic keys that are generated and managed on the participants' devices. Each message is secured with a "lock" and only the recipient's phone has the key to open it. During its transit through the Internet, the message remains illegible, so neither intermediaries nor the platform itself can see its contents.
A simple way to understand this is to imagine that you are sending a package in a locked box: the key is in your possession and the recipient's possession, no one else. Even if someone intercepts the box along the way, they won't be able to open it. This way, photos, videos, voice notes, and text messages are protected from unauthorized access.
If you want you can verify the encryption with your contact: open the chat, tap their name, enter “Encryption” and you will see a QR code and 60 digits. Scan the code with each other to confirm that the session is properly securedThis process doesn't change your user experience; everything happens in the background without you having to enter passwords for each message.
What encryption does not include: visible data and metadata
Although the messages are protected, there is information that is not part of the encryption. WhatsApp can access public account data such as name, description and profile photoAs well as names and descriptions of the groups in which you participate. This data is used, for example, to moderation automatisms that detect activities that violate rules.
In addition, there are Metadata of communications: phone numbers involved, date and time sent, device information, or IP address. WhatsApp cannot read your messages, but it can manage and, in certain legal cases, preserve and provide metadata associated with account activity. This information is relevant in investigations, although the content of the chat remain protected by encryption.
Reports and moderation: when WhatsApp can see content
If a user reports you, the system may receive from the whistleblower's device A recent sample of the chat to assess potential breaches. The encryption is not "broken": The content is sent already decrypted by the reporter, voluntarily, and the moderation team can analyze it based on the service's policies. This prevents the platform from being used for abuse and prohibited behavior, while maintaining the privacy of other conversations.
Backups, legal compliance and good practices
Another key element is backups. By default, you can save your chats to the operating system's cloud. So that the copy is also encrypted end-to-end, enable the backup encryption option in WhatsApp settings. Otherwise, the cloud storage provider may deliver the copy if legally requested. With backup encryption enabled, the Only you know the key.
Upon valid requests, the company can provide account data such as registration date, last connection, IP addresses, device IDs, profile and group information or contact list, as well as communications metadata if an order so requires. The message content It is kept out of reach by encryption.
Recommendations to increase your privacy: activate the two step verification With a PIN, protect your mobile with biometrics or code, uses temporary messages If you don't want to keep histories and if you archive chats, remember that it is a measure of discretion, not security. There are external encryption keyboards or websites, but their use can add risks (especially if you install APKs outside of official stores); in general, it is safer to rely on the integrated encryption of WhatsApp and its native functions.
The big news that generated expectations for a long time was the VoIP calls. They were announced at the Mobile World Congress and it was announced that they would arrive later; there was even talk that were postponed. In parallel, at that time The arrival of a new Samsung flagship was anticipated. Today, calls and video calls are fully integrated into WhatsApp and, like chats, They have end-to-end encryption.
WhatsApp has evolved from an unencrypted app to a platform where messages, calls and copies (if you configure them) can be protected end-to-end. Understand what is encrypted and what is not, how reports are managed and what metadata exists allows you to use the app with greater control and make informed decisions for protect your privacy In day to day.
