WhatsApp has a function for internet browsers that allows you to send messages to contacts that are not registered on the phone. While that was her hallmark, Click to chat It can also be used in other situations, for example, as a notepad or photo and video repository.
This option introduced by the messaging service three years ago is not one of the most popular options on WhatsApp Web, the version of the messenger that works in browsers and simultaneously with the app for Android and iOS.
However, Click to chat She explained that it also works as a personal chatter to save annotations, links, documents, photos, and pictures from the computer.
How to use Click to Chat on WhatsApp
Click to chat. WhatsApp function that also works as a notepad.
To open a personal chat, the user must type the address https://wa.me/ in the browser followed by the full phone number, in international format, i.e. +54 must be added in the case of Argentina.
For example, if the phone number is +1 (123) 456-7890, it should be expressed as: https://wa.me/11234567890, so you won’t have to include any symbol in the final look of the URL.
After opening this web address, WhatsApp will automatically offer its chat (or you can click ‘Continue’ with the chat if the browser doesn’t automatically redirect you to WhatsApp) and you can start Share your notes There is no need to establish a connection to your cell phone number.
Some users have even deliberately chosen to create blank groups to fulfill this type of warehouse, but using personal chat can have an advantage: not using mobile data, because messages and media are not sent to the WhatsApp server.
In mid-2020 and in the midst of the pandemic, cybersecurity specialist Athol Jayaram revealed that the Click To Chat job had registered A major security flaw Related to the domain Wa Powered by WhatsApp.
The problem was that some search engines were indexing the addresses among the results, so that the malicious user could obtain them with a simple search such as: “site: wa.me +34”, or any other international prefix.
Although in this way only phone numbers can be obtained however Not the user IDBy granting access to profile pictures, the attacker can attempt to reverse image search to obtain more information about the victim, as it is not uncommon for a user to use the same profile picture on multiple social networks.
In the wake of this episode, Facebook took responsibility for the problem and contacted the investigator, but did not consider the security flaw to be relevant enough to be included in the bug bounty program.
The reason is that it was a list of the URLs that WhatsApp users chose to post, since it’s all of themUsers can block messages Junk at the touch of a button in the messaging service.