Les trois types de menaces par e-mail les plus difficiles à détecter pour les utilisateurs

Version imprimable, PDF et e-mail

Il est une question que chaque entreprise se doit de soulever lorsqu'il s'agit de renforcer leur stratégie en matière de sécurité des e-mails : Mes utilisateurs savent-ils faire la distinction entre les e-mails légitimes et les menaces ? Certaines entreprises sont en mesure d'investir fortement dans une architecture de sécurité, mais beaucoup d'autres ne le sont pas. Dans un environnement où les stratégies en matière de sécurité disposent d'une vaste gamme d'options technologiques, il existe un dénominateur commun : les utilisateurs finaux.

Téléchargement gratuit : 13 types de menace par e-mail à connaître immédiatement

Barracuda has recently identified 13 email threat types — here are the ones most difficult for users to detect:

Compromission d'une boîte de messagerie professionnelle:

Lorsqu'un individu se fait passer pour un employé ou un partenaire d'une entreprise en vue d'obtenir des informations de valeur. La plupart du temps, ces attaques visent à tromper la victime de façon à lui soutirer de l'argent, des identifiants de connexion ou d'autres données sensibles.

Ce qui rend ces menaces difficiles à repérer :

Typically, these emails are crafted to look like they come from someone’s personal email account and include an urgent request. They want the recipient to think “this person is in a rush, and they need my help.” Adding an indicator that the message was sent from a mobile device makes it more likely that the recipient will overlook typos or abnormal formatting. Often, individuals don’t know the legitimate personal email addresses of their co-workers or managers, so if the name looks correct in the header and signature, they don’t question it.

Conversation hijacking:

Ce type d'attaque a lieu une fois qu'un individu malveillant a réussi à avoir accès à un compte interne. Il s'insère à un fil de conversation légitime en clonant un domaine et bloque ensuite le compte compromis afin d'isoler le fil de conversation pour inclure uniquement le pirate et sa victime.

Ce qui rend ces menaces difficiles à repérer :

The victim has already established a rapport with a legitimate recipient — this might be someone they email on a regular basis, maybe even someone they’ve talked with over the phone or met in person. Sometimes the only clue will be a very subtle difference in the email address and/or domain of the compromised party. If the recipient of the conversation hijacking email is on their mobile device, distracted, or not in the practice of double-checking an email sender’s FROM address, they can easily fall victim to this type of attack.

Brand impersonation:

There are two types of brand impersonation: Service impersonation and brand hijacking. Service impersonation is when a hacker impersonates a commonly used application to coax users into re-entering login credentials or other personal information. Brand hijacking is when a hacker uses a spoofed domain to impersonate a reputable company.

Ce qui rend ces menaces difficiles à repérer :

Users have become accustomed to receiving legitimate emails from applications prompting them to re-enter their credentials. Requests from Microsoft 365, Amazon, and Apple asking users to confirm their identities, reset their passwords, or agree to new service terms are commonplace in many user inboxes, so most don’t think twice before clicking links that ultimately send them to phishing sites.

La solution :

Users who receive consistent training on the 13 threat types — how they function, how to identify them, and how to report them — are much less likely to fall victim to them. Barracuda Security Awareness Training equips organizations with an effective security awareness training platform to test their users, analyze user behavior patterns, and train individuals and departments on security best practices. Using threat data gathered from other Barracuda Email Protection solutions, Barracuda Security Awareness Training allows program admins to expose their users to real-world attacks — without the threat of a data breach, brand damage, and financial loss. When technical security controls come up short, it’s up to the user to determine if an email attack is successful, so empower your users to react securely. Try Barracuda Email Protection risk-free for 14 days.

Try Barracuda Email Protection risk-free for 14 days.

Remonter en haut de page
Tweeter
Partager
Partager