Problems with passwords For security, it is desirable for passwords to be unpredictable However, it is difficult to remember highly random things Recent survey showed, an individual on average has 106 online accounts It is desired for individuals to not have the same password for all accountsProblems with Passwords • For security, it is desirable for passwords to be unpredictable • However, it is difficult to remember highly random things • Recent survey showed, an individual on average has 106 online accounts • It is desired for individuals to not have the same password for all accounts Topic 3: User Authentication 222/3/2021