Altice USA names Alexandre Fonseca, co-CEO of Altice Group in Europe, chairman, and adds him to the board; Dexter Goei steps down as executive chairman, but remains a board member ... Internet moderation platform WebPurify names former Twitter executive Alexandra Popken its first vice president-trust and safety ... Wireless infrastructure company StratCap hires C Spire’s Seale Duggar as director-contract management ... Orca Security names co-founder Gil Geron CEO, and moves fellow co-founder Avi Shua to chief innovation officer, newly created position ... Morse Micro, chipmaker specializing in Wi-Fi HaLow IoT connectivity applications, hires Phillip Kumin, ex-Synaptics, as senior vice president-worldwide sales and business development ... Allied Global Marketing, agency whose clients include Disney and Hulu, promotes Danyelle McGill to senior vice president-influencers and social.