UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 

FORM 6-K
 
Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 of the
Securities Exchange Act of 1934
  
For the Month of April 2021
 
(Commission File.  No. 000-30718).
 
SIERRA WIRELESS, INC.
(Translation of registrant’s name in English)
 
13811 Wireless Way
Richmond, British Columbia, Canada V6V 3A4
(Address of principal executive offices and zip code)
 
Registrant’s Telephone Number, including area code: 604-231-1100
 
Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F:
 
Form 20-F o 40-F ý
 
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):
 
  Yes: o No: ý
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):
 
  Yes: o No: ý

SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. 
  Sierra Wireless, Inc.
   
  By: /s/ Samuel Cochrane
     
    Samuel Cochrane, Chief Financial Officer
   
Date: April 1, 2021  




INCORPORATION BY REFERENCE

This Report on Form 6-K is incorporated by reference into the Registration Statement on Form S-8 of the registrant, which was filed with the Securities and Exchange Commission on March 31, 2016 (File No. : 333-210315).



FORM 51-102F3
MATERIAL CHANGE REPORT

Item 1. Name and Address of Company
SIERRA WIRELESS, INC. ("Sierra Wireless" or the "Company")
13811 Wireless Way
Richmond, B.C.
V6V 3A4

Item 2. Date of Material Change
March 26, 2021
Item 3. News Release
A press release announcing the change referred to in this report was issued on March 26, 2021. The press release was disseminated via Business Wire and subsequently filed on the Company's SEDAR profile.

Item 4. Summary of Material Change

Sierra Wireless has resumed production at its manufacturing sites and started to recover its internal systems after the ransomware attack on its internal IT systems and corporate website on March 20, 2021.

Item 5. Full Description of Material Change

Sierra Wireless was the subject of a ransomware attack on its internal IT systems and corporate website on March 20, 2021, and temporarily halted production at its manufacturing sites. The company has resumed production and started to recover its internal systems.

Once the company learned of the attack, its IT and operations teams immediately implemented measures to counter the attack. In addition, within hours of discovery, Sierra Wireless engaged Blake, Cassels and Graydon LLP, one of the leading cyber security law firms, as breach coach and legal counsel, and KPMG, one of the world’s leading forensic investigation and cyber incident response firms, to lead Sierra Wireless’ response and investigation into the incident.

Sierra Wireless’ team, with the assistance of additional third-party advisors, believe they have addressed the attack and are currently working to restore Sierra Wireless’ internal IT systems. They continue to investigate the incident and the extent of the impact on the company’s internal IT systems.

Sierra Wireless maintains a clear separation between its internal IT systems and its customer-facing products and services. Sierra Wireless believes that the impact of the attack was limited to Sierra Wireless’ internal systems and corporate website, and that its products and connectivity services were



not impacted, and its customers’ products and systems were not breached during the attack. At this point in its investigation of the ransomware attack, the company does not expect there to be any product security patches, or firmware or software updates required as a result of the attack.

Item 6. Reliance on Subsection 7.1(2) or (3) of National Instrument 51-102

Not applicable

Item 7. Omitted Information

Not applicable

Item 8. Executive Officer

For further information, please contact

Samuel Cochrane, Chief Financial Officer at Sierra Wireless, Inc., 13811 Wireless Way, Richmond, B.C., V6V 3A4, Telephone: (604) 231-1100.

Item 9. Date of Report

This material change report is dated as of April 1, 2021.