A replay attack is where a valid message is intercepted and replayed back to the service.

重播攻击是这样一类攻击：它可以拦截有效的消息，然后再将该消息重播回服务。

youdao

Replay attack — Re-sending a previously valid message for malicious effect, possibly where only parts of the message (such as the security token) are replayed.

应答攻击——为实现恶意的效果，重新发送一个以前曾经有效的消息，其中可能只是重放部分消息(如安全令牌)。

youdao

This attack can be combined with Replay attack to bypass authentication, and with Single message XDoS to increase its impact.

这种攻击可以与应答攻击联合使用，以绕过身份验证，并且再加上单消息XDoS来增加其危害程度。

youdao

This attack can be combined with Replay attack to bypass authentication, and with Single message XDoS to increase its impact.

这种攻击可以与应答攻击联合使用，以绕过身份验证，并且再加上单消息XDoS来增加其危害程度。

youdao