From 
HALLEX I-1-3-16 updated on August 30, 2013:
Generally, when adjudicating a claim, staff and adjudicators may not rely 
on information from the Internet that has not been corroborated by a 
Cooperative Disability Investigations Unit (CDIU). Further, entering an 
individual's personally identifiable information (PII) in an Internet 
search engine or social media network may compromise the confidentiality 
of PII. The responsibility to protect PII within an employee's control 
applies at all times, regardless of whether the employee is at an official 
duty station, another official work location, an alternate duty station, 
or off duty. This policy applies whether the individual is using a 
computer or personal device such as a smartphone. ... 
The AC [Appeals Council] will also consider whether a referral to the Office of the Chief 
Administrative Law Judge (OCALJ) may be appropriate. ...
     However, another new transmittal, this one to 
HALLEX I-2-5-69, says that "While it is acceptable to verify inmate information on the Internet, it is 
not acceptable for an ALJ to instigate an independent investigation of a 
claimant's criminal history on the Internet." Does this mean that an adjudicator can verify that the claimant is a current inmate but not that he or she is a former inmate?