Zello 2.6.0.0

However, the app also taught developers what not to do. The lack of encryption led to embarrassing leaks (police channels being trolled). The simple authentication allowed bots to spam channels. Modern Zello (versions 5.x and beyond) introduced screen-sharing, PIN-protected channels, and military-grade AES encryption—features that 2.6.0.0 diehards reject but enterprise customers demand.