IronNet’s September 2021 Threat Intelligence Brief highlights cyber threats detected across the IronNet Collective Defense community through the IronDefense platform. During the month, analysts identified numerous network behavioral anomalies that were assessed as suspicious or malicious, providing valuable insight into active threat activity across participating organizations. The report documented 773 Indicators of Compromise (IoCs), reflecting a significant volume of observed cyber threats. These included 411 general threat indicators, 299 command-and-control (C2) indicators associated with attacker communications, and 57 access-related indicators linked to unauthorized access attempts. By combining behavioral analytics with collaborative intelligence sharing, IronNet enables organizati

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