Reorganized in 1984 as a privately held company, Fiserv transformed itself through a corporate acquisitions strategy resulting in more than 150 acquisitions during the following 25 years. Beginning as a $21 million business with 350 employees, by 2009 it had become a Fortune 500 company worth $4.7 billion with more than 19,000 employees.
GnuPG Signature/Key. GPG file is a GnuPG Signature/Key file. GnuPG, which stands for GNU Privacy Guard (GPG) is the GNU project's complete and free implementation of the OpenPGP standard as defined by RFC4880 .
A signature block (often abbreviated as signature, sig block, sig file, .sig, dot sig, siggy, or just sig) is a block of text automatically appended at the bottom of an email message, Usenet article, or forum post. 1  1 Email and Usenet.  1.1 Signatures in Usenet postings.