Cloudmark came upon an email that offers free pizza, but clicking on the link to get the coupon ends with victims being ensnared in a botnet.
In its Q3 threat intelligence report, Solutionary learned that 75 percent of organizations it assisted had no response team or policies and procedures to address cyber incidents.
Malwarebytes found that, since early July, thousands of sites had been targeted in the campaign.
Conducted by the European Union Agency for Network and Information Security, the simulation launched 2,000 attacks on the networks of various critical infrastructure organizations.
The guidance, developed by a PCI Special Interest Group, will help merchants educate staff on protecting cardholder data.