Ngephrothokholi yokubethela eqinile (E2EE), ukuxhumana no-Berrty akwaziwa ngangokunokwenzeka (ayikho i-imeyili noma inombolo yocingo edingekayo, enobuncane bemethadatha). Uhlelo lokusebenza luklanyelwe ukusebenza ngaphandle kwe-inthanethi nangaphandle kwe-SIM khadi, ngenethiwekhi esabalalisiwe. U-Berrty uyithuluzi lokuxhumana elimelene nokubhekwa futhi kunzima kakhulu ukulicubungula.