[2] Around this time, Pat Cremin took over as managing director from Jim Mountjoy and began developing products like the Crypto Systems Toolbox, based on Purser's interests in cryptography.

In 1999 the company was listed on NASDAQ and the share price soared in value during the internet boom as its digital certificate business was seen as a vital tool to enable e-Commerce.

[3] Bijan Khezri, a former director of Baltimore Technologies in charge of capital markets finance, who had left the company over disagreements with Fran Rooney in 2000, was appointed CEO.

[4] In May 2006, the company released an AGM statement which described its strategy as "becoming a financial services business concentrating on those specialist areas of the market where we have the skills and track record to obtain an operational multiple on the valuation of our shares."

[5] Sarah Flannery won the European Young Scientist of the Year award for her presentation of the Cayley–Purser algorithm, which was based on work she performed with Baltimore researchers during a short internship with the company.