Expired50% confidenceFactExact time

Under default settings, WhatsApp automatically downloads received media files even if the user has not actively viewed them.

1

Sources

50%

Confidence

Medium-term (~90 days)

Relevance

7/8/2026

First Seen

Valid until: 10/6/2026(expired)

Sources

Why Does WhatsApp Drain So Much Battery? A Deep Dive into the Technical Causes and a Power-Saving Guide

hackernewshackernews7/7/2026

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UnverifiedWhatsApp 默认采用端到端加密（E2EE），消息在发送方设备加密、在接收方设备解密，中间传输过程中连 Meta 自身也无法读取内容63% similar Unverified2021年 WhatsApp 更新隐私政策引发大规模用户迁移至 Signal 和 Telegram56% similar Unverified用户在公开平台发布的内容会被第三方爬虫程序持续抓取并永久存档，形成独立于原始平台的数据副本52% similar

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