Of all the data points contained in Zimperium’s recently released 2022 Global Mobile Threat Report, perhaps the most shocking is the spike in known cases of zero-day exploits being used in attacks against mobile devices. A zero-day exploit is one where the vendor is unaware of the corresponding vulnerability at the time of attack and has therefore not provided a workable patch. The number jumped to 17 from three the previous year, while the share of zero-days that were mobile-specific increased from 11% to 31%.