Fibre-optic networks vulnerable to hacking
Hackers can access data by tapping the fibre-optic networks used by businesses around the world, according to an IDC report.
Fibre-optic cable networks are not as secure as believed - with new technology making it easy for hackers to steal data from them, according to an IDC report.
IDC research analyst Romain Fouchereau said that the reputation of a fibre-optic cable network as more secure than copper cables wasn't justified, and that new and inexpensive technologies have now made data theft easily possible for hackers without detection.
Organisations that carry sensitive information across fibre-optic cables are potentially vulnerable from criminal threats, as much of the cabling is easily accessible and not well protected. Fouchereau said that hacks on optical networks could be achieved simply by extracting light from ultra-thin fibres.
Once a successful tap has been achieved, software that records, monitors and analyses the data (called packet sniffers), can capture the data.
"Organisations in the financial, insurance, healthcare, and government sectors deliver sensitive information across fibre-optic cables around the world," Fouchereau said in the report.
"Hence, capturing or eavesdropping on this data serves not only military purposes. Industrial espionage in these sectors is worth billions of dollars."
The report also includes some past incidents of optical fibre networks being hacked, such as credit card breaches, government eavesdropping, and the criminal monitoring of big pharmaceutical companies in the UK.
Sign up today and you will receive a free copy of our Future Focus 2026 report - the leading resource for IT decision-maker insight on priorities and investment areas in AI, security and more.
Fouchereau said that as it was impossible to monitor the entire optical fibre network, the only solution to prevent it currently available is through encryption which would render the data useless to hackers.
-
Why patching velocity matters as Claude Mythos supercharges vulnerability discoveryFrontier AI models such as Claude Mythos and GPT-5.5 make patching more urgent than ever. How can firms increase the velocity at which they apply fixes and mitigations?
-
The UK is running on fumes as data center build-outs can’t keep pace with demandNews The country's vacancy rate has dropped sharply, with much of the pipeline early-stage and uncertain
-
Global security spending continues to riseNews The US and Europe show the strongest growth, but spending is rising globally
-
Security and lock-in still holds back the cloudNews An IDC survey shows both those looking to the cloud and those who have leapt in feet first have similar concerns.
-
UK has sixth lowest pirated software rateNews The BSA has called on more work to be done even though the UK has the world's sixth lowest software piracy rate.
-
Survey: Critical infrastructure risks cyber attackNews Half of the critical infrastructure providers that the UK, Europe and North America rely on are vulnerable to cyber attack, according to a new survey.