Loan Database

Encryption: These chats (your regular one-on-one chats, group chats, and channels) are client-to-server encrypted. This means your messages are encrypted when they leave your device, travel to Telegram's servers, and are then encrypted again when they travel from Telegram's servers to the recipient ...

You can set your account to automatically self-destruct if you're inactive for a certain period (e.g., 1 month, 3 months, 6 months, or 1 year). Go to Settings > Privacy and Security > Delete my account if away for.
News/Context: This is a drastic but available option. News articles and guides (like ...

Device Syncing: Whatsapp is a cloud-based messenger, meaning your chats and data are synced across all your devices. Your phone number is the central key to logging into new devices and accessing your synced data.

Your Options: Control, Change, or Delete the Account Entirely
While you can't simply ...

Third-Party Tools (Highly Risky): Beware of any bots or services claiming to reveal all group memberships. , malware, or provide incomplete/outdated data obtained through unethical means. Using them can compromise your own account.
New "Contact Confirmation" Feature: A recent update shows mutual ...

How they supposedly work: These tools often rely on scraping publicly accessible member lists from very large public groups and compiling them into databases. If a user is a member of many public groups, and these groups were crawled, their username/ID might appear in such a database.
Major ...

Can You See What Groups Someone is in on Whatsapp ? (News & Reality Check)
It's a common question that often pops up in discussions about Whatsapp 's privacy features, particularly on platforms like Reddit: "Can I see what groups someone else is in on Whatsapp ?" The straightforward answer ...

Virtual Phone Numbers (VoIP): Services like Google Voice (in regions where available), Burner, Hushed, or other VoIP providers offer virtual phone numbers that can receive SMS verification codes. You can use these numbers solely for Whatsapp registration, keeping your primary number completely ...

Contact Discovery and Social Graph Integration
This is where the phone number requirement often intersects with user convenience and, for some, privacy concerns.

Finding Friends: Whatsapp uses your phone number to help you discover friends who are already on the platform. When you sign up and allow ...

This large article will delve into the various reasons Whatsapp requires your phone number, how it uses it, and the ongoing discussions around this requirement, including workarounds and privacy considerations.

1. Identity Verification: The Primary Gatekeeper
At its most basic level, your phone ...

You are in a shared group or channel with someone, they can see your profile details (name, username, profile picture) within that group/channel's member list. This isn't a "notification" of a view, but it means your basic public profile is visible to them.
Adding to Contacts:

If you add someone's ...