A Disaster waiting to happen

I have been reading a lot lately from people saying not to use IE or Windows. They suggest switching to Firefox or Linux etc. They say that way they don’t have to worry about security. I believe that the only reason IE and Windows has a problem is because they are Microsoft. I have no problems with either one at home or at work because I stay up to date on my updates and patches and I run weekly maintenance programs. I believe those who switch have a false sense of security because their systems have not been targeted as much YET! Windows and IE have a company backing them up which does create patches for their systems when new attacks occur. Who is backing the open source systems?