Network segmentation
Dividing a network into separate segments by purpose and trust level, such as office, server, production and guest networks, and allowing only the traffic each segment actually needs. If one machine is compromised, the attacker has a much harder time spreading to other systems. Devices that cannot be patched, including legacy and industrial systems, should at least sit in their own segment with restricted inbound sources.
Further reading: www.cisa.gov
Advisories that mention this term
CISA and FBI warn SafePay ransomware gang has hit about 600 organizations
CISA, the FBI, the US Secret Service and international partners released a joint advisory warning that SafePay is one of the most active ransomware groups of 2026, impacting about 600 victims across the Americas, Europe and Australia .
IGS's follow-up filing says game operations data leaked, including some players' names, phone numbers and emails
According to iThome, after game software developer International Games System (IGS, 3293) announced in late September that its operational IT equipment was breached by an unknown IP address, the company issued a follow-up material announcement on the Market Observation Post System (MOPS) on October 7 explaining that the incident resulted in the leakage of game operational data, including partial player names, phone numbers, and email addresses; the company has notified personal data protection regulators in accordance with the law, informed affected individuals via email and SMS, and provided dedicated customer support contact information .