What is OAuth 2? OAuth is an open standard using which a third-party application can gain access to some part of a user’s account. The service that provides access, does not need to provide the application the user’s password. Instead, the service can provide a secure...
Authentication using a password alone is not secure enough. If the password is weak or an attacker manages to steal the password, the attacker will be able to gain access to the account. One way to make the authentication process more secure is to use another factor...
What is DNS over HTTPS (DoH)? DNS over HTTPS or DoH is a protocol that performs the DNS resolution via the HTTPS protocol. DoH sends the DNS queries and receives the DNS responses over HTTP using HTTPS. How does DNS over HTTPS or DoH work? In this article, we would...
What is the SYN Flood? SYN Flood is a type of Denial of Service (DoS) attack in which attackers send a large number of SYN requests to a system and create a huge number of half-open connections. These requests consume lots of server resources such that after some time...
What is backscatter? Attackers often forge the from and reply-to address of an email to send spam messages. When a receiving server receives such email spam with a forged sender address and later realizes that it cannot deliver the email message, it sends a bounce...
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