I have been watching this drama since last night and I don't really want to blame OP for his mistake because everyone makes mistakes and sometimes it can ruin our entire progress which took years to build but as everyone said you holds the responsibility of paying it back to the company that is the only way to prove your not guilty.
Many of us do watch this thread, this thing can happen to all of us, but so far OP has all the things that need to be done he created a thread on what happened, and he reaches out to the developers of the projects he is managing, he opened himself to criticism, he offers a plan on the payment of the stolen fund, he allows to get tagged.
All he wants is to get back on his feet, so let's give him a chance to redeem himself, he deserves it he worked his way to become a trusted manager for five years.
Sometimes everything works against us and that's the life so don't lose your heart and think what you can do further and about your system I think its better to take back-up and flash the OS as soon as possible instead of looking for clipboard malware or something, and move whatever funds and any sensitive information stored should be moved to a new wallet and document.to ensure its safety.
After what happened to OP, I spent the whole night checking my PC since I'm also using Electrum to download additional anti-virus and checked all unused applications, OP opened our eyes to the fact that we must have a conscious effort to safeguard our system.