Mondelez International (MDLZ) is marked to open down on Friday after revealing last month's cyber attack will hit second quarter earnings.

Shares are marked 0.72% lower in premarket trading Friday, having closed at $43.06 on Thursday.

The snacks company Thursday, July 6, said it will likely see a 3% negative impact on their second quarter revenue growth from the June 27 Petya virus, which impacted its invoicing and shipping.

"Given the timing of this significant global attack, despite our best efforts, we experienced disruption in our ability to ship and invoice during the last four days of our second quarter," Mondelez said. "There are a few markets where we have permanently lost some of that revenue due to holiday feature timing, but we expect we will be able to recognize the majority of these delayed shipments in our third quarter results."

Mondelez reaffirmed its full-year organic revenue growth outlook of "at least 1 percent growth." It expects to incur incremental one-time costs in the second and third quarters as a result of this issue, but its underlying margin progress continues to be in line with its outlook of mid-16% for the full-year.

The company said it has made good progress in restoring its systems across the enterprise and believe the issue has been container. "Our teams have done remarkable work to continue to operate the business, manufacture our products, serve customer needs and progress the recovery activities," Mondelez said.

The company's second quarter earnings are due out in August.

Reckitt Benckiser (RBGLY) also said Thursday that its second quarter revenues will take a significant hit as a result of the impact of the cyber attack.

The consumer health and hygiene group said that like-for-like revenues will likely fall by 2% when compared to the same quarter of 2016, Reckitt said, owing to the impact of the attack and the companies ability to ship goods to various customers. it had previously expected sales to rise by around 3%.

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