However, it's worth noting that downloading and installing ipa files from untrusted sources can pose security risks, as they may contain malware or other malicious code. Today, WhatsApp and other app developers emphasize the importance of downloading updates from official channels, such as the App Store or Google Play Store.
The 2.8.7 ipa file was widely distributed through various online channels, including the App Store and third-party websites. Users could download and install the update manually, using tools like Cydia Impactor or by jailbreaking their devices. WhatsApp Messenger 2.8.7.ipa
It's worth noting that WhatsApp no longer supports version 2.8.7, and users are encouraged to update to the latest version of the app to ensure they have the latest features and security patches. However, it's worth noting that downloading and installing