61% of manufacturers have experienced cybersecurity incidents in their smart factories and are struggling to effectively manage cyber risk. Technology (78%) was seen as the biggest security challenge, although people (68%) and process (67%) were also cited as top challenges by many respondents. Organizations with a high degree of IT-OT collaboration were more likely to implement technical security measures than those with less cohesion. The National Institute of Standards and Technology’s (NIST) Cyber Security Framework and ISO 27001 (ISMS) were among the most popular guidelines.
Source: https://www.helpnetsecurity.com/2021/03/31/smart-factory-security-projects/

