S1 Corporation Completes Acquisition of VerticalOne Corporation

S1 Adds Another Major Milestone in Executing on its Vision to Empower

Financial Institutions to Improve their Customers' World



11 Nov, 1999, 00:00 ET from Security First Technologies Corporation

    ATLANTA, Nov. 11 /PRNewswire/ -- S1 Corporation (Nasdaq:   SONE) today
 announced that it has completed its acquisition of Atlanta-based VerticalOne
 Corporation.  VerticalOne becomes a wholly-owned subsidiary of S1 Corporation
 and will maintain its corporate identity as a leading consolidator, organizer
 and presenter of personal account information via the Internet.  With the
 completion of this strategic acquisition, S1 Corporation continues to
 aggressively execute on its commitment to provide innovative solutions that
 help financial institutions deliver greater value to their customers and
 ultimately improve their customers' worlds.
     Under the terms of the agreement entered into on September 23, 1999, S1
 Corporation issued approximately 3.86 million shares of S1 common stock to
 VerticalOne shareholders.  S1 also assumed options to purchase VerticalOne
 common stock, which converted into options to purchase approximately
 500 thousand shares of S1 common stock and granted approximately 2 million
 additional options to VerticalOne employees.
     "By joining forces with VerticalOne, S1 is uniquely positioned to enable
 financial institutions to develop lasting, personal relationships with their
 customers," said James S. Mahan III, CEO of S1 Corporation.  "We are extremely
 pleased to welcome the exceptional people of VerticalOne into the S1 family.
 S1 solutions will now be extended to enable financial institutions, for the
 first time, to provide customers with a single, online view of all their
 personal and financial data, regardless of the source of the account.
 Ultimately, this capability will empower financial institutions to provide
 such a compelling and personalized online experience that ordinary customers
 will inevitably become a loyal community of return visitors."
     In addition to applying its technology in support of financial services
 solutions, VerticalOne will aggressively target and penetrate additional
 market segments to capitalize on significant demand and market opportunity.
 VerticalOne's strong relationships with leading Internet-based companies will
 be maintained and expanded.
     VerticalOne's distribution partners include GO Network, LookSmart, MyWay
 (formerly Planet Direct), The Motley Fool, The Street.com, AnyDay.com, and
 BellSouth(R) Buzz(SM), and are also accessible via the Palm VII(TM) organizer,
 the first handheld solution for out-of-the-box wireless Internet access.
 Through these partnerships, and others, VerticalOne's reach will extend to
 over 40 million Internet users, giving them one-stop access to all of their
 personal accounts online.
 
     About S1 Corporation
     S1, the pioneer of Internet banking, is today's leading provider of
 innovative Internet-based financial services solutions.  S1 offers a broad
 range of applications that empower financial organizations to increase
 revenue, strengthen customer relationships and gain competitive advantage by
 meeting the evolving needs of their customers across various lines of
 business, market segments and delivery channels.  Through its professional
 services organization, S1's applications can be implemented in-house or
 outsourced to the S1 Data Center.  Additional information about S1 is
 available at http://www.s1.com.
 
     About VerticalOne Corporation
     Headquartered in Atlanta, VerticalOne Corporation is a privately held
 company founded in 1998 to enable the next generation of Internet content
 personalization services for consumers. VerticalOne has built the information
 infrastructure that will empower Internet destination sites to offer their
 online customers a single point-of-access to a wide variety of personal
 content and account information including reward programs, communications,
 investments, bank statements, and other bills or personal accounts.
 VerticalOne's Privacy Statement is certified by both TRUSTesm) and
 BBBOnLine(R), and the company is certified by Internet Security Systems (ISS).
     More information about the company can be obtained from the World Wide Web
 at http://www.verticalone.com or by email to marketing@verticalone.com.
 
 

SOURCE Security First Technologies Corporation
    ATLANTA, Nov. 11 /PRNewswire/ -- S1 Corporation (Nasdaq:   SONE) today
 announced that it has completed its acquisition of Atlanta-based VerticalOne
 Corporation.  VerticalOne becomes a wholly-owned subsidiary of S1 Corporation
 and will maintain its corporate identity as a leading consolidator, organizer
 and presenter of personal account information via the Internet.  With the
 completion of this strategic acquisition, S1 Corporation continues to
 aggressively execute on its commitment to provide innovative solutions that
 help financial institutions deliver greater value to their customers and
 ultimately improve their customers' worlds.
     Under the terms of the agreement entered into on September 23, 1999, S1
 Corporation issued approximately 3.86 million shares of S1 common stock to
 VerticalOne shareholders.  S1 also assumed options to purchase VerticalOne
 common stock, which converted into options to purchase approximately
 500 thousand shares of S1 common stock and granted approximately 2 million
 additional options to VerticalOne employees.
     "By joining forces with VerticalOne, S1 is uniquely positioned to enable
 financial institutions to develop lasting, personal relationships with their
 customers," said James S. Mahan III, CEO of S1 Corporation.  "We are extremely
 pleased to welcome the exceptional people of VerticalOne into the S1 family.
 S1 solutions will now be extended to enable financial institutions, for the
 first time, to provide customers with a single, online view of all their
 personal and financial data, regardless of the source of the account.
 Ultimately, this capability will empower financial institutions to provide
 such a compelling and personalized online experience that ordinary customers
 will inevitably become a loyal community of return visitors."
     In addition to applying its technology in support of financial services
 solutions, VerticalOne will aggressively target and penetrate additional
 market segments to capitalize on significant demand and market opportunity.
 VerticalOne's strong relationships with leading Internet-based companies will
 be maintained and expanded.
     VerticalOne's distribution partners include GO Network, LookSmart, MyWay
 (formerly Planet Direct), The Motley Fool, The Street.com, AnyDay.com, and
 BellSouth(R) Buzz(SM), and are also accessible via the Palm VII(TM) organizer,
 the first handheld solution for out-of-the-box wireless Internet access.
 Through these partnerships, and others, VerticalOne's reach will extend to
 over 40 million Internet users, giving them one-stop access to all of their
 personal accounts online.
 
     About S1 Corporation
     S1, the pioneer of Internet banking, is today's leading provider of
 innovative Internet-based financial services solutions.  S1 offers a broad
 range of applications that empower financial organizations to increase
 revenue, strengthen customer relationships and gain competitive advantage by
 meeting the evolving needs of their customers across various lines of
 business, market segments and delivery channels.  Through its professional
 services organization, S1's applications can be implemented in-house or
 outsourced to the S1 Data Center.  Additional information about S1 is
 available at http://www.s1.com.
 
     About VerticalOne Corporation
     Headquartered in Atlanta, VerticalOne Corporation is a privately held
 company founded in 1998 to enable the next generation of Internet content
 personalization services for consumers. VerticalOne has built the information
 infrastructure that will empower Internet destination sites to offer their
 online customers a single point-of-access to a wide variety of personal
 content and account information including reward programs, communications,
 investments, bank statements, and other bills or personal accounts.
 VerticalOne's Privacy Statement is certified by both TRUSTesm) and
 BBBOnLine(R), and the company is certified by Internet Security Systems (ISS).
     More information about the company can be obtained from the World Wide Web
 at http://www.verticalone.com or by email to marketing@verticalone.com.
 
 SOURCE  Security First Technologies Corporation

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