whatsapp signal telegram

Telegram isn’t encrypted, and honestly you shouldn’t use it.[1] Whatsapp and Signal are US-based, which means that they will give up your data on the first request.

Use actually secure messengers, like Delta Chat, SimpleX, or Matrix with end-to-end encryption.

Wikipedia, as well as encyclopedias and textbooks, are secondary sources.

No, they are tertiary sources.

don’t take Wikipedia seriously unless it cites a primary source directly.

Primary sources are against the policy in 99.9% of cases.