India, June 17 -- Nearly five months after Nancy Guthrie vanished from her Tucson home, a volunteer search group in Mexico has returned to the field following an anonymous tip and a new cybersecurity report raising the possibility that Nancy may have been targeted as part of a calculated crime linked to her daughter and Today host, Savannah's fame.

A cybersecurity firm called CertiK released a report designating Nancy's abduction as a "wrench attack by proxy", a type of crime in which criminals orchestrate an attack and hire others to carry it out, targeting a vulnerable relative of someone they wish to extort, according to Fox News Digital's Mike Ruiz.

Pima County Sheriff Chris Nanos confirmed to Fox News Digital that the report had be...