So if you’re doing a solution architecture review, make sure you first look at the security design of the system including authentication, digital signatures, secret key cryptography, public key cryptography, authorization, and non-repudiation from the perspective of a digital firm. Authentication and authorization are the founding stones of security which needs to be understood and deployed across the enterprise.

The use of digital signatures has seen tremendous growth in recent years and with the onset of new technologies, in particular Web-services, promises to be the dominant area in security. Corporate espionage is on the rise, and security can not be overlooked.
Ensure your system vulnerabilities are checked - Cross Site Scripting seems to be the worst offender in modern systems. Make sure your internet-facing applications are hosted on supported and patched platforms. Approach it with an outside-in, basic-first strategy for your IT department instead of focussing on obtuse things like bit-encryption levels first, ensure you can prioritize defenses against the most probably threat vectors first.

The use of digital signatures has seen tremendous growth in recent years and with the onset of new technologies, in particular Web-services, promises to be the dominant area in security. Corporate espionage is on the rise, and security can not be overlooked.
Ensure your system vulnerabilities are checked - Cross Site Scripting seems to be the worst offender in modern systems. Make sure your internet-facing applications are hosted on supported and patched platforms. Approach it with an outside-in, basic-first strategy for your IT department instead of focussing on obtuse things like bit-encryption levels first, ensure you can prioritize defenses against the most probably threat vectors first.