The ISC is capturing social engineering attacks and have close to 200 incidents documented

https://isc.sans.edu/diary/Report+Fake+Tech+Support+Calls+submission+form+reminder/15704

https://isc.sans.edu/reportfakecall.html

QUOTE: We are trying to better understand how common “Fake Tech Support” calls are, and what they are trying to achieve. If you received a call that claims to provide tech support, or another service, only to extract information from you or to trick you into installing malware on your system, please use the form below to report any details.

SUMMARY OF DATA CAPTURED
https://isc.sans.edu/reportfakecallstats.html