The advent of end-to-end encrypted (E2EE) messaging and backup services has brought
new challenges for usable authentication. Compared to regular web services, the nature of …

Recovery codes are a popular backup mechanism for online services to aid users who lost
their passwords or two-factor authentication tokens in regaining access to their accounts or …

Several security issues in open-source projects demonstrate that developer accounts get
misused or stolen if weak authentication is used. Many services have started to enforce …

Nowadays, most online services offer different authentication methods that users can set up
for multi-factor authentication but also as a recovery method. This configuration must be …

Abstract One-Time Passwords (OTPs) are a crucial component of multi-factor authentication
(MFA) systems, providing additional security by requiring users to supply a dynamically …

Passwords are still a popular authentication approach, even as biometric authentication has
become a widespread method to access our phones. Although password managing tools …

Risk-based authentication (RBA) is used in online services to protect user accounts from
unauthorized takeover. RBA commonly uses contextual features that indicate a suspicious …

Passwordless authentication avoids the weaknesses of password based authentication
such as guessable passwords and password reuse. However, when passwordless …

Information technology has become more and more ubiquitous in recent times, and it affects
almost all aspects of modern life. To protect this technology and its underlying resources, the …

cozy Shell is an encrypted network protocol that has become increasingly popular in
network security. Using SSH, organizations can defend their wireless networks from …