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A month earlier, after Koum purchased an iPhone, he and Acton decided to create an app for the App Store. The idea started off as an app that would display statuses in a phone’s Contacts menu, showing if a person was at work or on a call.
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• There were a series of incidents between 2017 and 2020, after which WhatsApp announced changes for Indian users of the platform that labels forwarded messages as such.
• This new encryption feature added an additional layer of protection to chat backups stored either on Apple iCloud or Google Drive.

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• In 2022, WhatsApp added the ability for users to turn off their online status.

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• The new privacy policy would not apply within the EU, as it is illegal under the GDPR.

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• It became the world’s most popular messaging application in 2015, with 900 million users, and had more than 2 billion active users worldwide in February 2020.

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• Both Telegram and Signal in particular were reported to get registration spikes during WhatsApp outages and controversies.

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App Functionality

Higher usage was reported by frontline clinical staff to keep up with care needs, even though NHS trust policies do not permit their use. In 2016, WhatsApp was widely praised for the addition of end-to-end encryption and earned a 6 out of 7 points on the Electronic Frontier Foundation’s “Secure Messaging Scorecard”. WhatsApp Payments (marketed as WhatsApp Pay) is a peer-to-peer money transfer feature. WhatsApp has been officially supported for iPads and its iPadOS since May 27, 2025.

Africa, Middle East, and India

At that point WhatsApp was adding about 25 million new users every month, or 833,000 active Starzbet users per day. The organization reported a massive drop-off in traffic for the blocked services, though the country’s government made no official statements about the block. In May 2019, WhatsApp was attacked by hackers who installed spyware on a number of victims’ smartphones. A Wired report noted the attack was able to inject malware via calls to the targeted phone, even if the user did not answer the call.

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• In 2016, WhatsApp was widely praised for the addition of end-to-end encryption and earned a 6 out of 7 points on the Electronic Frontier Foundation’s “Secure Messaging Scorecard”.

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• In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client.

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• By early January 2015, WhatsApp had 700 million monthly users and over 30 billion messages every day.

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• In October 2020, WhatsApp rolled out a feature allowing users to mute both individuals and group chats forever.
• In September 2017, security researchers reported to The New York Times that the WhatsApp service had been completely blocked in China.
• In August 2014, WhatsApp was the most popular messaging app in the world, with more than 600 million users.

Version 25.33.73

It allows users to send text messages, voice messages, and video messages, make voice and video calls, and share images, documents, user locations, and other content. In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client. As of May 2025, the service had 3 billion monthly active users, making it the most used messenger app.

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• The service was created by WhatsApp Inc. of Mountain View, California, which was acquired by Facebook in February 2014 for approximately US$19.3 billion.

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• In May 2019, WhatsApp was attacked by hackers who installed spyware on a number of victims’ smartphones.

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• The desktop version was first only available to Android, BlackBerry, and Windows Phone users.
• In December 2023, WhatsApp’s “View Once” feature expanded to include voice messages.
• When a user deletes media for everyone, WhatsApp does not delete images saved in the iOS camera roll and so those users are able to keep the images.

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• The messages involved discussing how to make an explosive device and a confession to the attack.

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Security and privacy

In October 2023 they also introduced passkey support, where a user can verify their login with on-device biometrics, rather than SMS. In November 2023, WhatsApp also began rolling out support for sending login codes to a linked email address, rather than via SMS. Voice calls between two accounts were added to the app in March and April 2015.