Spam can deliver phishing links, malware, and fraudulent messages, making it a path for account theft and other cyberattacks.
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Background for this topic.
Spam is unsolicited, usually bulk messaging sent through email, text messages, social platforms, or other communication services. It may be commercial advertising, but security-relevant spam commonly includes deceptive messages designed to look like trusted communications. Automated campaigns can target large numbers of recipients at low cost, while compromised accounts and spoofed sender identities can make messages appear more credible.
Spam is a delivery channel for phishing, malware, fraudulent payment requests, and credential theft; links or attachments should therefore be treated as untrusted until verified. Defenses include reputation and content filtering, user reporting, attachment and URL analysis, and email authentication controls such as SPF, DKIM, and DMARC to reduce sender spoofing. Security teams should preserve relevant message headers and indicators when investigating campaigns, blocking associated infrastructure and checking whether recipients interacted with the content.
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Barracuda observed a big spike in spam emails generated using AI tools, making up the majority detected in April 2025
A new AI-powered framework dubbed “AkiraBot” has successfully spammed 80,000 websites since September 2024
With Android Scam Detection for messages and calls, Google wants to push scam detection further than traditional spam detection
Bitdefender found that 77% of Black Friday-themed spam emails in 2024 have been identified as scams, with attackers becoming more creative in their campaigns
60% of QR code emails are spam according findings from Cisco Talos, who also identified attackers using QR code art to bypass security filters
Xeon Sender features SMS spam via APIs, Nexmo/Twilio credentials validation and phone number generation
Proofpoint highlighted how smishing, impersonation and spam are eroding trust in mobile messaging
According to JFrog, approximately 25% of all repositories lack useful functionality and serve as vehicles for spam and malware
The ICO has fined HelloFresh £140,000 for breaking privacy laws with a spam marketing campaign
Truecaller warns malicious calls make up the majority
Credit reporting firm accused of sending millions of unwanted emails
SEO poisoning drives surge in traffic
New research analyzes email scam techniques in the build-up to this year's Black Friday
Fake apps led to account takeovers and spam campaigns
The spam emails were sent to trick recipients into signing up for fake paid subscriptions
Retailer sent half a million emails to people without their consent
Rise in malspam campaigns exploiting attack on Ukraine by Russia
The UK regulator experienced a huge surge in spam, phishing and malware email attacks during 2021