Find details here: https://www.accenture.com/us-en/insight-building-confidence-facing-cybersecurity-conundrum
Ilia Kolochenko, CEO of web security firm, High-Tech Bridge comments on the research findings:
“It’s just the tip of the iceberg. The most advanced intrusions are rarely detected, and many large companies are not even aware that they were breached. Professional Black Hats have absolutely no interest in their victim becoming aware of the breach, and do their best to stay invisible by thoroughly planning every operation and deploying various smoke-screens to distract attention of security teams.
Especially large companies have a major challenge when detecting intrusions, as cybercriminals usually target their branch offices, partners, suppliers or even shareholders that don’t have such a high level of defense, but have access to the same data. I think it wouldn’t be exaggerated to say that over 90% of well-prepared targeted attacks, conducted by experienced hackers, are and will be successful.”