Credential stuffing attacks have exploded this April, Okta warns, and advises its customers to use available tools to block access requests originating from residential proxies before authentication takes place. Abuse of proxy networks “In credential stuffing attacks, adversaries attempt to sign-in to online services using large lists of usernames and passwords obtained from previous data breaches of unrelated entities, or from phishing or malware campaigns,” Okta’s Moussa Diallo and Brett Winterford explained.

Source: Help Net Security