I have a cursive signature that's a blend of my birth name and last name, but it's more out of necessity than anything else. Unfortunately being an adult requires signing documents, and I'm too paranoid about people signing things in my name to just sign things in block capitals or something. I know forging signatures is a thing, but doing so requires a little extra effort, and I can't imagine people would bother doing it when I don't deal in large sums of money (at least not on a personal level) or anything.
I have an e-mail signature as well, but that's primarily for work, or business-related e-mails I sent via my Outlook account when I'm making personal inquiries. That's just my name, qualifications, and contact telephone number.