Security experts like to say there are only two kinds of companies: those that have had large-scale password security breaches and those that just haven't yet.

Security experts like to say there are only two kinds of companies: those that have had large-scale password security breaches and those that just haven't yet. At MIT's recent EmTech conference, Bionym showed its wearable authentication device that uses the wearer's electro cardiogram (ECG) that promises to provide strong security without the complexity of regularly changing and remembering passwords.