Enterprise Wireless Alliance announces Marty McKinney, ex-APCO, as director-business development …Alaska Communications hires Jeff Vogt, ex-Actifai, also former Cantaloupe, Comcast, Level 3 Communications and AOL, as chief operating officer ... Piper Sandler investment bank promotes Brian White to co-head-technology investment banking, sharing that title with Steven Schmidt; White succeeds Nicholas Osborne, promoted to chairman-technology investment banking ... LastPass taps Asad Siddiqui, ex-Celigo, also former LinkedIn, as chief information officer ... AT&T elects Sunshine Products CEO Marissa Mayer, also former Yahoo and Google, to its board ... Mobix Labs, fabless semiconductor company specializing in connectivity technologies for 5G infrastructure and satellite communications, names Chief Technology Officer Jim Aralis to lead new technical advisory board; inaugural board members are Greg Winner, InnoPhase chief operating officer; Jay Standiford, longtime engineering executive and consultant; and Frank Thiel, founder of Kolvenier Solutions, technology consulting company.