Despite my efforts at maintaining a professional and positive relationship while resigning from a job, I've recently been informed by past colleagues that my past employer has been saying a lot of negative things about me - basically blaming me for everything that is wrong with their company. It's not surprising to me as I realized before I decided to leave that there was a significant lack of professionalism and inability to accept fault among the company leaders, and by the time I left I had severely lost respect and trust in the company management.
I'm worried that they will find a way to sabotage future opportunities for me, or even just that they will find any opportunity to dispute my accomplishments at their company. I would prefer for them not to be able to see my LinkedIn profile at all anymore, although I don't want to disconnect from connections that we share.
Should I disconnect with them on LinkedIn? Will that have any effect? Are there other things I should be concerned about that they could do to damage my reputation in the digital world?
I should add that while I worked with software in both places, they are in an only tangentially related vertical to the one I'm in now, and do not consider themselves a software company, so they are unlikely to share colleagues or go to the same industry events in the future. It's more a concern that they would ever, out of malice, actively reach out to people in my network, although I think their tendency towards inaction makes this unlikely.