https://owasp.org/www-community/attacks/Password_Spraying_Attack
A credential stuffing attack would be using the full credentials and most likely being used across many common platforms. A credential stuffing attack depends on the reuse of passwords. With so many people reusing their passwords for multiple accounts, just one set of credentials is enough to expose most or all of their accounts.

Enforcing geofencing to limit data accessibility is the best option to ensure the privacy of the data that is on its systems. Geofencing is a technique that uses GPS or RFID technology to create a virtual geographic boundary around a specific location or area. Geofencing can be used to restrict data accessibility based on the location of the device or user that tries to access it. For example, geofencing can prevent employees from accessing sensitive data when they are outside the office premises or in a different country3. Geofencing can help protect data privacy and comply with data protection regulations that may vary across regions or jurisdictions.

A port scan generated the output. A port scan is a type of attack that probes a host or a network for open ports or services. A port scan can help an attacker discover potential vulnerabilities or entry points for further exploitation. The output shows that tcpdump captured packets with different flags, such as SYN, ACK, RST, and FIN, which indicate different stages of the TCP three-way handshake or connection termination. The output also shows that the source IP address 192.168.1.100 sent packets to different destination ports on the target IP address 192.168.1.101, such as 22, 23, 25, 80, and 443. These are common ports that an attacker would scan to find out what services are running on the target.

Static analysis of the code is a technique that scans the source code or the compiled code of an application without executing it, to identify potential vulnerabilities, errors, or bugs. Static analysis can help uncover all the software vulnerabilities, safeguard the interest of the software's end users, reduce the likelihood that a defective program will enter production, and preserve the interests of the software producer by improving the quality and security of the code before it is deployed or run1

A breach notification is a communication to affected individuals or entities that informs them of a security incident involving their personal or sensitive information. A breach notification may include details such as what information was compromised, when and how the incident occurred, what actions are being taken to mitigate the impact, and what steps the recipients should take to protect themselves3 A breach notification may be required by law or regulation, depending on the type and location of the information involved and the jurisdiction of the affected parties. Different countries or regions may have different breach notification requirements, such as who must be notified, when, how, and what information must be disclosed4 Therefore, the best role to determine the breach notification requirements for a company that experienced a breach of sensitive information affecting customers across multiple geographical regions is legal counsel. Legal counsel can advise the company on its legal obligations and liabilities, as well as help draft and deliver appropriate breach notifications.