I've noticed an increase in spam email, too. An order of magnitude!
Altho I've got 2 or 3 spam filters on my email (depending on the
address) that send the spam to /dev/null, I always check the count,
just out of curiousity. "debora????" has been incredibly prolific
trying to push scam stocks the past week or so.

Monday morning I had over 150 spam email (fortunately, sent to /dev/null)
Even then, 3-5 still got thru 3 layers of filters!