More details regarding the massive hack that hit Target late last year have been uncovered, revealing how attackers gained access to the retailer’s systems. After a recent report said that the hackers used old-school tactics like actually stealing the credentials of a Target employee to gain access to the store, Krebs on Security now says that the credentials actually belonged to a Target maintenance company that dealt with, among other things, air conditioning vents. While hackers did not actually enter a Target store through the vents like in the movies, they got access to the company’s credentials and used them to attack Target’s internal networks. Apparently the Secret Service has already visited the company in question, which has serviced various