Global packaging group Ardagh, which is led by Irishman Paul Coulson, has said it was recently the victim of a cybersecurity incident which has led to some delays and disruption to parts of its business.
The company said production has continued at its metal and glass packaging facilities and it has initiated defence and containment measures that included pro-actively shutting down some IT systems and applications.
"We are progressively bringing key systems back online securely, in a phased manner," it said in a statement.
"This is proceeding according to plan and is expected to be substantially achieved by the end of this month."
Ardagh is a global supplier of recyclable metal and glass packaging and operates 57 metal and glass production facilities in 12 countries.
It said its IT team, supported by external cyber security and other specialists, has been working to fix this issue, while continuing to safely operate its facilities.
"We have engaged leading industry specialists to conduct a forensic investigation of this incident, and we will take appropriate actions in response to the findings," it said.
"We have introduced new protection tools across our network to ensure an immediately enhanced level of security."
The company said it has continued to ship products to customers but there has been some delays because of the incident.
"Certain other processes, including some supply chain operations, have been affected, and alternative solutions, including manual workarounds, have been implemented, to enable us to continue to respond to our customers' needs," it said.
Ardagh said the disruption is likely to lead to some deferral or loss of revenue and increased costs but that current indications are that it will not impact full year 2021 guidance.
The firm employs over 16,000 people and has sales of around $7 billion.