WISeKey International Holding Ltd Reports Preliminary Nine Months 2018 Revenue of Approximately $37.6 Million (unaudited), up 12% from Same Period of 2017

Zug, Switzerland - October 16, 2018 - WISeKey International Holding Ltd ("WISeKey") (SIX: WIHN. OTCQX: WIKYY), a provider of Cybersecurity and IoT solutions, today announced that its consolidated preliminary revenue for the 9 month-period ended September 30, 2018 ("Q3 2018") is expected to increase to approximately $37.6 million (unaudited), due primarily due to strong demand for the Company's IoT Technology and Cybersecurity products, and a larger client base resulting from strong synergies between these two main verticals. This represents a 12% increase from the $33.5 million adjusted unaudited consolidated revenue reported for the nine-month period ended September 30, 2017.

WISeKey also expects to report improved liquidity with $8.5 million in cash at September 30, 2018, up $2.1 million from September 30, 2017, due to its improved operating performance.

Carlos Moreira, Founder and CEO of WISeKey said, "WISeKey has been constantly increasing its focus on the IoT segment, and we are currently offering various solutions (both hardware and software) supporting customers using IoT-based systems. At the same time, we are working on a future wave of WISeKey's cybersecurity IoT technologies, enhanced with BlockChain, WISeCoin Crypto Tokens and Artificial Intelligence (AI) via an integrated platform with the code name 'Foresight'. WISeKey has evolved from a cybersecurity player . to the IoT platform for the 4^th Industrial Revolution, led by WISeKey Semiconductors and its Public Key Infrastructure (PKI) offerings, as we are currently delivering IoT solutions built on the most trusted architecture ever implemented."

Milestones during the First Nine Months (January to September 2018)
WISeKey reinforced its position as a provider of digital identity and IoT security solutions to organizations and manufacturers worldwide. The Company also reinforced its technology's core with a set of functions designed to be trusted by an operating system called the Root of Trust (RoT), which is exclusively licensed by WISeKey and embedded in nearly four billion devices worldwide. The RoT is a highly dependable environment within a computational device for processing basic level security functions such as encryption and authentication for digital communication protocols such as PKI systems. During 2018 WISeKey primarily focused on securing the IoT with managed PKI software and secure semiconductors, although the Company is working on other initiatives to expand the breadth and scope of its platform using AI, cryptocurrencies and BlockChain.

Cybersecurity:

Automotive:

• WISeKey extended its contract with a leading automobile manufacturer to secure connected cars using trusted cybersecurity IoT technologies.
• WISeKey's ISTANA offering for securing connected cars against cyber-attacks was deployed with several leading EU manufacturers and is set to entry the Chinese market in Q4 2018.

IoT:

• WISeKey introduced INeS, a Security Broker Solution, designed to secure devices, cloud & IOT applications, integrated with IBM's new Watson IoT platform.

Blockchain & Counterfeiting:

• WISeKey leveraged its CertifyID BlockChain Technology to create a Universal Decentralized Identification System.
• Favre-Leuba selected WISekey's cutting-edge WISeAuthentic BlockChain platform to protect its luxury timepieces.
• WISeKey WISeAuthentic BlockChain for brand protection integrated its PKI with Hyperledger Fabric to minimize counterfeiting and fraud.

• WISeKey and Japanese Toppan Printing, a leader in security printing and anti-counterfeiting, signed a collaboration agreement to securely connect inert objects to the Internet.

WISeCoin and crypto tokens:

• WISeKey signed a partnership with Highscreen International SA to develop WISePhone - the first ever secure BlockChain phone with cryptocurrency payment capabilities.
• WISeCoin AG applied for regulatory clearance from the Swiss financial market regulator, FINMA, to issue a Security Token Offering (STO).

Financing Activities:

• WISeKey secured a convertible loan in the amount of $3.0 million from a fund managed by Crede Capital Group, LLC.
• WISeKey and China Bridge Capital signed an agreement to establish WISeKey China Joint Venture.
• WISeKey secured a short-term unsecured loan facility in an amount of $3.5 million from a fund managed by Yorkville Advisors Global, LLC and amended its existing Standby Equity Distribution Agreement.
• ExWorks released all of its security interests on the intellectual property of WISeKey International Holding, WISeKey SA, WISeTrust SA and WISeKey Semiconductors SAS and on the equity interests held by the WISeKey in its subsidiaries WISeKey SA, WISeKey Trust, and WISeKey Semiconductors, retaining only the security interests on the IP and equity of the Quovadis group of companies.
  
  

M&A Activities and Stock Price Evolution

Over the past two years, WISeKey has pursued a strategic investments and acquisition strategy to extend its platform capabilities and drive revenue growth. In September 2016, the company acquired VaultIC-a provider of secure integrated circuits and microcontrollers. In 2016 WISeKey made a strategic investment in Open Limit, the German listed Cybersecurity company. In April 2017, WISeKey acquired a majority share (85%) position in QuoVadis-a cybersecurity software vendor providing scalable mPKI, SSL and Digital Signature solutions (remaining 15% of QuoVadis was acquired in May 2018). As consequence of this acquisition WISeKey also owns 10% of HydrantID, a leading US based Identity Management company.  In September 2018, WISeKey signed binding agreements to acquire a 22% interest in Tarmin.com the Boston, Massachusetts leader on Data & Software Defined Infrastructure and launched a new Secure Cloud offering.

As consequences of these investments and acquisitions our operating and financial performance has substantially improved, and we continue to execute against a series of initiatives that we believe will, over time, further position WISeKey to deliver the value that our shareholders deserve.  That said, we believe our stock price was negatively impacted by a number of factors that include:

• an overhang created by the acquisitions of VaultIC and QuoVadis - which were partially paid in shares;
• certain financing operations through SEDA transactions (Standby Equity Distribution Agreement) which allows to obtain cash against the issuance of shares;
• the acquisition of the remaining 15% of QuoVadis and WISeKey SA;
• the payment of Exworks interest rates in shares; and,
• low trading volume on the Swiss Stock Exchange for our category of stock.

About WISeKey:
WISeKey (SIX Swiss Exchange: WIHN) is a leading global cybersecurity company currently deploying via a Virtual Platform large scale digital identity ecosystems. WISeKey's Swiss based cryptographic Root of Trust ("RoT") and IoT Microchips provides secure authentication and identification, in both physical and virtual environments, for the Internet of Things, Blockchain and Artificial Intelligence. The WISeKey RoT serves as a common trust anchor to ensure the integrity of online transactions among objects and between objects and people. For more information, visit www.wisekey.com.

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This communication expressly or implicitly contains certain forward-looking statements concerning WISeKey International Holding Ltd and its business. Such statements involve certain known and unknown risks, uncertainties and other factors, which could cause the actual results, financial condition, performance or achievements of WISeKey International Holding Ltd to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. WISeKey International Holding Ltd is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise.
This press release does not constitute an offer to sell, or a solicitation of an offer to buy, any securities, and it does not constitute an offering prospectus within the meaning of article 652a or article 1156 of the Swiss Code of Obligations or a listing prospectus within the meaning of the listing rules of the SIX Swiss Exchange. Investors must rely on their own evaluation of WISeKey and its securities, including the merits and risks involved. Nothing contained herein is, or shall be relied on as, a promise or representation as to the future performance of WISeKey.