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AOL is committed to protecting the privacy and security of our members. To maintain the security of your account while accessing AOL Mail through third-party apps, it's necessary to keep your connection settings updated.
The publishing of TLS 1.3 and DTLS 1.3 obsoleted TLS 1.2 and DTLS 1.2. Note that there are known vulnerabilities in SSL 2.0 and SSL 3.0. In 2021, IETF published RFC 8996 also forbidding negotiation of TLS 1.0, TLS 1.1, and DTLS 1.0 due to known vulnerabilities. NIST SP 800-52 requires support of TLS 1.3 by January 2024.
Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network, such as the Internet.The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible.
The Hop-by-Hop Identifier is an unsigned 32-bit integer field (in network byte order) that is used to match the requests with their answers as the same value in the request is used in the response. The Diameter protocol requires that relaying and proxying agents maintain transaction state, which is used for failover purposes.
This is an accepted version of this page This is the latest accepted revision, reviewed on 21 January 2025. Extension of the HTTP communications protocol to support TLS encryption Internet protocol suite Application layer BGP DHCP (v6) DNS FTP HTTP (HTTP/3) HTTPS IMAP IRC LDAP MGCP MQTT NNTP NTP OSPF POP PTP ONC/RPC RTP RTSP RIP SIP SMTP SNMP SSH Telnet TLS/SSL XMPP more... Transport layer TCP ...
If the font size in your messages list and emails is causing readability issues, changing it may help. To increase the font size: 1. Click the Settings Icon. 2. Toggle on Enable large text size to increase text size. To switch back to the default font size, toggle this setting off again.
Transport Layer Security (TLS) requires a handshake of its own for key exchange at connection establishment. Because of the layered design, the TCP handshake and the TLS handshake proceed serially; the TLS handshake cannot begin until the TCP handshake has concluded. [113] Two RTTs are required for connection establishment with TLS 1.2 over TCP ...
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