US officials revealed that Iran hacked unclassified Navy computers in recent weeks in an escalation of cyber attacks against US infrastructures. Similar attacks could expose confidential information such as blueprints of a new cyber weapon, but could also compromise an architecture of the Defense Department. Irans cyber abilities have increased gradually reaching a concerning level, Teheran has sufficient cyber abilities to attack the US causing serious damages to the country. Despite the Iranian cyber capabilities are considered modest, they could be sufficient to launch attacks against the US that would do more damage to public perceptions than actual infrastructure.”]
Source: https://securityaffairs.co/wordpress/18171/hacking/iran-hacked-us-navy-computers.html