You have received this message because at some time in the past your name was submitted to our e-mail mailing list database. If you do not wish (or no longer wish) to receive announcements, updates and news concerning the RPK Encryptonite Engine or the RPK InvisiMail e-mail security products, please forward this message to remove@rpkusa.com ----------------------------------------------------------------------- CONTACT Paula Miller Lyn Oswald Nadel Phelan, Inc. RPK Security Inc. 408-439-5570 x277 212-488-9891 paulam@nadelphelan.com lynoswald@rpkusa.com INVISIMAIL INTERNATIONAL LTD. ANNOUNCES RPK InvisiMail VERSION 3.0 New York, NY, October 21 1998 - InvisiMail International, Ltd., (www.InvisiMail.com) announced today the latest release of its RPK InvisiMail Intro 3.0 and RPK InvisiMail Deluxe 3.0 e-mail encryption products. RPK InvisiMail provides individual e-mail users with the easiest solution for automatically and transparently encrypting e-mail messages and attachments. The first e-mail security product with globally strong encryption, RPK InvisiMail integrates seamlessly with more e-mail products than any other security solution available today. RPK InvisiMail enables authentication of the sender and verifies contents have not been changed in transit. RPK InvisiMail Intro provides fast, secure (607bit) encryption for e-mail messages and attachments, and is unobtrusive allowing e-mail which is sent to non-InvisiMail users to be simply and intelligently passed as a conventional e-mail message. RPK InvisiMail Deluxe adds an even higher level of security (up to 1279bit) and provides features such as e-mail compression that reduces transmission time, and digital message signatures to validate senders. InvisiMail International also offers RPK InvisiMail Enterprise Edition, a strong corporate e-mail security add-in. RPK InvisiMail Enterprise Edition's flexible design allows corporate IT managers to configure e-mail security for individual users, networks and gateways. More Pricing and Availability The RPK InvisiMail Intro version is free. The Deluxe version retails for $29.95 U.S. Both the Intro and the Deluxe versions are available for download from the InvisiMail International web site at www.InvisiMail.com. Pricing for RPK InvisiMail Enterprise Edition is based on the number of seat licenses and starts at $100 per user. ABOUT InvisiMail INTERNATIONAL LTD. InvisiMail International Ltd., founded in 1997, specializes in secure Internet commerce and communications solutions for a wide range of applications. Developed using RPK Security, Inc.'s core technology, the RPK Encryptonite Engine, the InvisiMail range of products supports secure message-based applications including Client Services ECommerce, EDI and others that require absolute confidentiality and the highest security levels. This allows the simplest e-mail systems to become the most powerful business and commerce tools. Contact InvisiMail at www.InvisiMail.com or call +44 1624 611 003. ABOUT RPK SECURITY Founded in 1995, RPK Security, Inc. is a technology leader in fast public key cryptography. Its flagship RPK Encryptonite Engine, a uniquely fast and strong public key encryption technology, is available worldwide in custom hardware and software toolkits on multiple platforms. Visit RPK's website at www.rpkusa.com or call (212) 488-9891.