CISA, the Cybersecurity & Infrastructure Security Agency, has sounded the alarm on reports of targeted denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks against multiple organizations in multiple business sectors. These attacks can cost your organization time and money and may hurt your customer service reputation while resources and services are inaccessible.

If you think you or your business is experiencing a DoS or DDoS attack, it is important to get the appropriate technical professionals engaged for assistance.

• Contact your IT support team or network administrator to confirm whether the service outage is due to maintenance or an in-house network issue.
• Your IT team can also monitor network traffic to confirm the presence of an attack, identify the source, and mitigate the situation by applying firewall rules and possibly rerouting traffic through a DoS protection service.
• Contact your internet service provider to ask if there is an outage on their end or if their network is the target of an attack and you are an indirect victim. They may be able to advise you on an appropriate course of action.

Take proactive steps now to reduce the effects of an attack. See the following guidance for more information:

CISA PDF: Understanding and Responding to Distributed Denial-of-Service Attacks

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