An employee reports an error when visiting a website using SSL, and a message is displayed warning of an invalid certificate.
Which of the following could be occurring?
A.
Phishing B.
DDoS C.
Evil twin D.
MITM E.
OCSP stapling.
C.
An employee reports an error when visiting a website using SSL, and a message is displayed warning of an invalid certificate.
Which of the following could be occurring?
A.
Phishing
B.
DDoS
C.
Evil twin
D.
MITM
E.
OCSP stapling.
C.
The most likely scenario when an error is displayed when visiting a website using SSL (Secure Sockets Layer) and a message is displayed warning of an invalid certificate is a Man-in-the-Middle (MITM) attack.
SSL is a protocol that provides secure communication over the internet by encrypting data transmission. It relies on digital certificates issued by trusted Certificate Authorities (CA) to verify the identity of the website being accessed. If a certificate is invalid or not trusted, it can indicate that the connection is being intercepted by a third party.
A Man-in-the-Middle attack is a form of cyber attack where an attacker intercepts communication between two parties, often using a fake website or network, to steal data, such as login credentials or credit card information. In the context of SSL, the attacker intercepts the SSL connection and presents a fake SSL certificate to the user, which is not trusted by the user's browser. This fake certificate can be used to decrypt the data being transmitted, allowing the attacker to view and manipulate sensitive information.
Phishing is a form of social engineering where attackers use email or other means to trick users into providing sensitive information or clicking on malicious links. A phishing attack would not typically involve SSL errors or invalid certificates.
DDoS (Distributed Denial of Service) is a type of attack that floods a network or website with traffic to make it unavailable to legitimate users. It would not typically involve SSL errors or invalid certificates.
Evil twin is a type of Wi-Fi attack where an attacker sets up a fake wireless access point with a name similar to a legitimate one to intercept traffic. It would not typically involve SSL errors or invalid certificates.
OCSP (Online Certificate Status Protocol) stapling is a mechanism used to check the validity of SSL certificates in real-time. It would not typically be the cause of an SSL error or invalid certificate warning.
In conclusion, the most likely scenario when a user encounters an SSL error warning of an invalid certificate is a Man-in-the-Middle attack, where an attacker is intercepting and manipulating the SSL connection.