Sales of Viavi Solutions slipped in the second fiscal quarter, in part because of a dip in anti-counterfeit sales.
Around 353,000 counterfeit euro banknotes were withdrawn from circulation in the last six months of 2016.
The delay around intellectual property laws in Myanmar has increased anxiety among investors and industry.
The global smart label market is expected to reach top $16bn in value by 2025, says new market research.
Amazon has been subpoenaed by three textbook publishers in a lawsuit against alleged counterfeiters.
The countdown to the new £1 coin has started, with the UK Treasury saying it will enter circulation in March.