In an update on Thursday afternoon, London Drugs said that the impact of the cybersecurity incident over the weekend which forced the temporary closure of its stores across Western Canada has been significant.

"... The restoration process is rigorous. There are billions of lines of data and code to review. London Drugs continues to work with leading third-party cybersecurity experts to bring operations back online in a safe and secure manner," the company stated.

Clint Mahlman, President and Chief Operating Officer (COO) of the company said that they are determining if they can reopen with partial services to take care of customers sooner, particularly the company's pharmacy customers.

The statement also underlined that at this point in the company's investigation, there is no evidence of any customer databases being compromised, including their pharmacy patients and LDExtras members.

"In the event our investigation determines that personal information was impacted, we will notify affected individuals in accordance with privacy laws."

While stores remain closed, London Drugs Pharmacists remain on-site at all store locations to assist with emergency prescriptions and other urgent care. Canada Post locations within stores are also accessible and its Insurance Services Call Centre is open.

"London Drugs is also working closely with third-party information providers, for example, provincial health systems, and ensuring we are reconnecting with their systems as per their protocols. Each third-party information provider has different requirements, which are complex and time-consuming."

As London Drugs phone lines are now operational, customers are advised to contact their local store or Pharmacy. 

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