Experts spotted a new targeted phishing campaign that leverages a new obfuscation technique based on the Morse code to hide malicious URLs in an email attachment and bypass secure mail gateways and mail filters.
The Morse code encodes each letter and number in a series of dots and dashes.
BleepingComputer that first reported the news, confirmed that this is the first time that threat actors in the wild started using the Morse encoding for the malicious URLs in phishing.
