This rule detects potential phishing attempts that impersonate Apple, specifically targeting individuals who may be misled by emails attempting to appear as communications from Apple developers. The rule checks if the sender's display name closely resembles that of a legitimate Apple developer ('apple developer'), using a fuzzy matching technique (Levenshtein distance of 2 or less) to account for typos or variations. It additionally verifies that the sender's email domain is not a recognized Apple domain (like apple.com) and checks that the email sender is not in the recipient's list of known email addresses to further mitigate against impersonation attempts. This detection is crucial in identifying potential credential phishing attacks that utilize social engineering tactics under the guise of Apple’s branding.