At that point WhatsApp was adding about 25 million new users every month, or 833,000 active 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.

Kids in India

• WhatsApp is owned by Meta, whose main social media service Facebook has been blocked in China since 2009.
• End-to-end encryption was only fully implemented in April 2016 after a two-year process.
• In April 2018, WhatsApp co-founder and CEO Jan Koum announced he would be leaving the company.

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• WhatsApp Payments (marketed as WhatsApp Pay) is a peer-to-peer money transfer feature.

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• WhatsApp was announced to be the 3rd most downloaded mobile phone app of the decade 2010–2019.

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• Visual effects also became available, adding visual filters to a user’s video feed.

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Higher usage was reported by frontline clinical staff to keep up with Starzbet 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.
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• They link to and sync with WhatsApp actively running on a supported primary phone.
• Previously, users could opt-out of such data sharing, but the new policy removed this option.
• Three days after announcing the Facebook purchase, Koum said they were working to introduce voice calls.

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• In April 2023, the app rolled out a feature that would allow account access across multiple phones, in a shift that would make it more like competitors.

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• The company also reported that Windows Phone operating systems would no longer be supported after December 31, 2019.

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• In July 2017, WhatsApp added support for file uploads of all file types, with a limit of 100 MB.

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Telegram Messenger

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.

Supporting Women’s Rights

Visual effects also became available, adding visual filters to a user’s video feed. In December 2023, WhatsApp’s “View Once” feature expanded to include voice messages. In August 2022, WhatsApp launched an integration with JioMart, available only to users in India.

• However, the WhatsApp privacy policy does not apply in the EU, since it violates the principles of GDPR.
• 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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• According to a white paper that was released along with the announcement, WhatsApp messages are encrypted with the Signal Protocol.

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• Similar to voice messages, this feature allows users to record and send short videos directly in a chat.

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• According to the company, messages could be edited within a 15-minute window after being sent.

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• Unlike messages in groups or private chats, channels are not end-to-end encrypted.

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Voice and video calling and notes

The new privacy policy would not apply within the EU, as it is illegal under the GDPR. 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. In February 2015, WhatsApp implemented voice calling, which helped WhatsApp to attract a different segment of the user population. On November 14, 2016, WhatsApp added video calling for users using Android, iPhone, and Windows Phone devices. This ability (named multi-device support) began testing in July 2021 and rolled out to all users in April 2023. They link to and sync with WhatsApp actively running on a supported primary phone.

Obviously a mature and stable application

This allows users to send messages between other messaging apps and WhatsApp while maintaining end-to-end encryption. The company also reported that Windows Phone operating systems would no longer be supported after December 31, 2019. WhatsApp was announced to be the 3rd most downloaded mobile phone app of the decade 2010–2019.