A malware campaign impersonates an NCAS/Department of Homeland Security notice by using spoofed email addresses. DHS cautions that attachments may contain malware. CISA does not issue NCAS alerts with email attachments as a matter of policy. Rather, CISA recommends that users examine all email messages carefully before opening them.
Emails with harmful attachments are frequently sent by cybercriminals. When accessed, these attachments can install ransomware, keyloggers, and other malware on the victim's device. These three tactics account for nearly all types of fraudulent emails sent by hackers. The most common type of harmful file is the document, which can contain a macro virus, spyware, or just be malicious content in general.
When you receive an email with an attachment, there are several things you should do:
1. Check the sender's address. If it doesn't belong to a contact in your address book, then you should ignore it. Cybercriminals often use fake addresses to disguise their identity. They may even use a reliable company address but change the name in the domain extension (i.e., gmail.com instead of googlemail.com).
2. Look at the contents. If something looks amiss, such as if the message was sent from an unknown source or contains language/symbols used in scams, then delete it immediately. Hackers use these techniques to hide their identity and lure people into clicking on dangerous links or downloading files.
3. Avoid opening attached files. It is not recommended to open any files received through email unless you know they are safe.
The Cybersecurity and Infrastructure Security Agency (CISA) serves as the nation's risk counselor, collaborating with partners to guard against current threats and construct a more secure and resilient infrastructure for the future. Our mission partners come from both the public and private sectors. They include national laboratories, academia, defense agencies, and non-governmental organizations.
At its core, CISA's work is focused on three areas: cybersecurity, infrastructure security, and information sharing. Within these areas, we promote awareness of threats through education and outreach, develop standards to help businesses identify and address cyber risks, and provide federal leadership by developing policies that advance the cybersecurity community.
We are part of the Department of Homeland Security (DHS), which has a broad mission to protect our country from terrorism and other serious threats while promoting economic growth and stability. DHS components work closely with their state and local counterparts to prevent terrorist attacks, respond to incidents, and recover from them effectively. They also work with international partners to share information and reduce risks from violent extremist activities.
DHS invests more than $7 billion annually in cybersecurity efforts across all departments and agencies. This includes hiring approximately 14,000 new employees a year for computer system administrator positions alone. In addition, DHS spends another $5 billion on IT projects each year. These projects range from enhancing data security for government websites to replacing aging telecommunications equipment.
New E-Scams and Alerts Note: The FBI does not send bulk e-mails regarding cyber scams to private persons, therefore if you receive an e-mail claiming to be from the FBI Director or another prominent official, it is most likely a fraud. Visit the FBI's Internet Crime Complaint Center for the most recent e-scams and warnings.
The FBI's website does use email to notify users of important information such as job openings or updates to security guidelines. Users can also submit tips through their account on the FBI website.
Email is also used by field agents to communicate with each other and staff members in the FBI headquarters in Washington D.C. When writing to colleagues, all letters are signed by number rather than name to ensure that they are not considered confidential communications.
Email is widely regarded as fast, convenient, and inexpensive way to communicate. However, this advantage comes with a cost: vulnerability to hacking. Anyone who can access your email account can read your messages. You should never give out any personal information including your password. Even employees at the FBI headquarters have had their accounts hacked. In addition, because there is no face-to-face communication involved in email, a hacker can pose as someone else by assuming their identity. For these reasons, it is important that users protect their email accounts by using strong passwords, limiting access to them, and not sharing their credentials with anyone else.
The National Terrorism Advisory System (NTAS) of the Department of Homeland Security (DHS) notifies the public and appropriate government and private sector partners about prospective or existing threats, identifying whether the danger is "imminent" or "elevated." More information is available on the DHS NTAS webpage.
In addition to federal agencies, state and local officials may receive an alert if they are listed as essential services under the Federal Emergency Management Agency (FEMA) Public Assistance program. These officials use their discretion to determine whether to inform the public of elevated threats. State and local officials are encouraged to disseminate relevant information through their own channels.
As part of its risk-based security framework, DHS has developed a national terrorism advisory system to provide timely warnings of terrorist activity that could potentially affect large numbers of people within the United States. The system uses the most effective warning technology available to convey critical information about potential attacks.
A national terrorism advisory system differs from other emergency management systems in three important ways: it provides near real-time alerts to enable individuals to take protective measures before any harm occurs; it identifies the type of threat (i.e., imminent or elevated); and it informs the public about relevant federal agency activities.
Users can report questionable emails with a single click, which promotes your organization's security culture. Your employee receives immediate feedback, which helps to reinforce their instruction. You have the option of changing the receiving email address and adding a prefix. For example, you could change all employee reports to [email protected], or you could create a special team that focuses on monitoring social media for threats.
When you uncover a spam-quarantined communication that you know is real, you can restore it to your inbox. When a message is delivered to your mailbox, the service re-scans it for malware but bypasses spam filtering. You may even report the message as "not rubbish" if you like.
Restored messages appear in your mailbox with a blue badge and are labeled "Quarantined." You can open them without risk of being spammed again.
Restore a Quarantined Email: From the Home tab, click Restore Mailbox. In the Restoring Quarantined Mail window, click the name of the email account to which you want to restore mail from Quarantine. A list of all restored messages appears. Click OK to confirm the restoration or Cancel to exit Without Saving. The Microsoft Office Outlook software removes any pending items in the background while restoring mail from quarantine.
The Secretary of Homeland Security has published a new National Terrorism Advisory System (NTAS) Bulletin in response to the present heightened threat environment in the United States. Threats to the homeland have grown dramatically and will become more complicated and dangerous in 2021. These threats include: acts of violence inspired by foreign terrorist organizations, such as shootings, bombings, and vehicular attacks; natural disasters; and other events that can lead to mass casualties such as disease outbreaks.
Homeland security experts have identified four trends that will impact domestic security in the coming year: increased use of social media by terrorists for recruitment and propaganda; growing numbers of skilled migrants seeking jobs in the U.S.; an increase in the number of older Americans who are vulnerable to exploitation by criminals; and a rise in the number of children who may be exploited by terrorists.
These are just some of the many threats we face. There is no doubt that terrorism remains a serious threat, but so does natural disaster, illness, and crime. It is important for citizens to know how agencies across the government are preparing for these various threats so they can help protect themselves and their communities.
Since 9/11, federal agencies have made significant progress in improving their ability to prevent terror attacks and respond to incidents when they occur. For example, DHS has developed a national strategy to prevent violent extremism by focusing on young people and what drives them toward terrorism.