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Public Statement - Network and Service Interruptions


The following is an update on our progress regarding the interruption of our network and services.

As previously disclosed, on May 6, Wolters Kluwer experienced a malware attack impacting a portion of our environment. In response, we took a very broad range of customer and internal applications and platforms offline to protect systems, applications and customer data. As of mid-May, we had restored service to all applications and platforms.

On May 7, we engaged a leading cybersecurity technology firm to conduct a forensic investigation of the incident. While the forensic firm's investigation is ongoing, it has made significant progress and has now reported certain preliminary findings to us based on the work it has performed to date. Specifically, the forensics firm observed neither additional activity involving the identified malware since the week of the incident nor any evidence of data exfiltration from our network.

We thank our customers for their patience and understanding. We will continue to provide updates.


Forward-looking Statements and Other Important Legal Information
This report contains forward-looking statements. These statements may be identified by words such as “expect”, “should”, “could”, “shall” and similar expressions. Wolters Kluwer cautions that such forward-looking statements are qualified by certain risks and uncertainties that could cause actual results and events to differ materially from what is contemplated by the forward-looking statements. Factors which could cause actual results to differ from these forward-looking statements may include, without limitation, general economic conditions; conditions in the markets in which Wolters Kluwer is engaged; behavior of customers, suppliers, and competitors; technological developments; the implementation and execution of new ICT systems or outsourcing; and legal, tax, and regulatory rules affecting Wolters Kluwer’s businesses, as well as risks related to mergers, acquisitions, and divestments. In addition, financial risks such as currency movements, interest rate fluctuations, liquidity, and credit risks could influence future results. The foregoing list of factors should not be construed as exhaustive. Wolters Kluwer disclaims any intention or obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.