SkyePoint Decisions, cybersecurity solutions provider to the federal government, promotes Heather Conigliaro to president ... AlertMedia, emergency communications provider, names Marc Ostryniec, ex-BigCommerce, chief revenue officer ... Arkose Labs, bot management and online security company, hires Mimecast’s John Walsh as chief technology officer; Ashish Jain, who previously headed engineering and product for Arkose, moves to chief product officer ... Qrypt, quantum-secure encryption company, adds Roger Biscay, Cisco senior vice president-corporate treasurer and head-global corporate security, to its board of advisers.