Do you have a Google Analytics account that: is linked to AdWords and has auto-tagging enabled and does not have AdWords cost data applied? If so, Google have now fixed the “autotagged AdWords search traffic for which cost data had not been applied to be reported as "direct" traffic” issue. And now logs autotagged/non cost data traffic as source=google and medium=cpc. If you were affected by this issue, you’ll see a drop in direct traffic and an increase in paid traffic, appropriately. Please note that organic and non-AdWords paid traffic remains unaffected, explained Analytics Blog.