Since Russia's invasion of Ukraine began we've seen an eight-fold increase in phishing spam. Here are the 6 most common scams to watch out for. How bad is it? According to e-mail security firm Avanan, Russian-based credential-harvesting phishing attacks have jumped eight-fold. Ow. Adding insult to injury, it's not just Russians who are trying to crack into your business's servers. It's also the same crooks using new variations on old scams trying to get your money. Here's a list of the six most common phishing scams to watch out for the next time you open your e-mail.