December has not been the most prolific month for spammers. After seeing a huge increase in September and October, November started to go flat. There was a an upswing in mid-December but this latest two weeks has dropped down over Christmas.
Week % increase in spamSep 11 - Sep 17 -16.06%Sep 18 - Sep 24 21.71%Sep 25 - Oct 1 -13.14%Oct 2 - Oct 8 14.63%Oct 9 - Oct 15 14.97%Oct 16 - Oct 22 8.89%Oct 23 - Oct 29 1.78%Oct 30 - Nov 5 12.51%Nov 6 - Nov 12 -9.22%Nov 13 - Nov 19 -0.77%Nov 20 - Nov 26 1.87%Nov 27 - Dec 3 5.86%Dec 4 - Dec 10 3.58%Dec 11 - Dec 17 18.03%Dec 18 - Dec 24 -2.82%Dec 25 - Jan 1 -18.08%
I guess even spammers take a holiday. Well, that and the earthquake that disrupted their spamming patterns. It wasn't a big a drop as I thought but it was definitely noticeable.
This propably means that a lot of spam mails are being sent from infected PC's and a lot of people propably don't use their PC the last two weeks of December. My guess is that there will be a peak in the first weeks of January.