Unverified50% confidenceFactExact time
In the late 1990s, encryption tools such as PGP began to be introduced into instant messaging scenarios by some technical users, and third-party plugins and alternative solutions began to attract attention, but ICQ itself did not natively support end-to-end encryption.
1
Sources
50%
Confidence
Long-term
Relevance
10/16/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedIn the late 1990s, internet products generally prioritized feature iteration over security, and ICQ's vulnerabilities were merely a microcosm of the instant messaging security predicament of that time.76% similarUnverifiedPGP later evolved into the OpenPGP standard and gave rise to widely used open-source implementations such as GnuPG, and its technical approach is still used today in scenarios such as email encryption, software package signing, and code commit signing.71% similarUnverifiedPGP诞生于1991年，至今已有30多年历史，是最早被广泛认知的邮件加密方案71% similarUnverifiedEarly PGP was not invulnerable in algorithm design and key management, and the security community later had a great deal of criticism, mostly focused on usability and key lifecycle management (revocation, expiration, recovery from loss, confirmation of public-key authenticity) rather than the encryption algorithms themselves.69% similarUnverifiedPGP uses long-term static keys and lacks Forward Secrecy; once the private key is compromised, all historical communications encrypted with that key will be exposed.68% similar
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