My company has been sent a email from dassault systems for the use of pirated version of their software.

The company i have been working for the past 2 months has been sent a e-mail from dassault systems(the proprietor of solid works) accusing the company of using pirated copies of solidworks, i am not aware if the company was indeed using a pirated copy, i worked with the software i was provided with on the office computer, my personal computer did contain a solid works version which seems to me was pirated, they have mentioned my personal computers mac address that got linked with the companies mail, but the other mac addesses are clearly not mine but are linked to my company mail id, i can prove it because the date of installation of these pirated software are 2 years prior to the date i joined the company, My question is that can the company put all the blame on me for using pirated software?, according to the team of dassault systems none of the databases show that company actually bought solidworks licenses, i have proof of the work done by other members of the company in solidworks, with due respect i will ask again can the company put all the blame on me for using pirated software?