Phishing Attacks Are Skyrocketing in 2025, and Thai Businesses Are Prime Targets
Let me paint you a picture.
It’s Tuesday morning. A junior accountant at your company gets a voicemail and a follow-up email from “Bangkok Bank.” The caller ID looks legit. The voice is polite, speaks Thai, and references a real invoice number. They ask for verification “due to suspicious activity.” The accountant, trying not to get it wrong, shares just enough.
By Friday, your finance team has wired 1.2 million baht to a fake vendor.
Sound far-fetched? It’s not. This is exactly how modern phishing works. It’s calculated, convincing, and increasingly local.
📈 Phishing Is Now the #1 Threat Vector—Globally and Locally
According to Cisco Talos, phishing was the entry point for over 50% of cyberattacks in Q1 2025. Just one quarter ago, that number was under 10%.
And in Thailand? We’re getting hit harder than most.
336,000+ phishing attacks targeted Thai businesses in 2024
168 million scam calls and SMS in the same year (up 112%)
Thailand ranked #1 in Southeast Asia for financial phishing attempts
Kaspersky data shows a rising trend of spoofed banking websites and deepfake voicemails tailored to Thai users
This isn’t just spam anymore. This is professional social engineering—sometimes with AI-generated voices, localised branding, and stolen real-world data.
☎️ Vishing: The New Frontline
One of the most alarming trends in the Talos report is the rise of vishing, or voice phishing.
It now accounts for over 60% of phishing engagements, globally.
These are often part of multi-step attacks: an SMS or email softens the target, a phone call adds urgency, and the victim (pressured and confused) slips up.
This works especially well in Thailand where call etiquette is formal, customer service voices are trusted, and people are hesitant to challenge authority figures.
🔐 What These Attacks Actually Lead To
Phishing isn’t just about stealing passwords. It’s the gateway to:
Ransomware deployment
Business email compromise (BEC)
Invoice fraud and wire transfer scams
Credential harvesting for future attacks
In short, once they’re in, it’s open season on your data, finances, and reputation.
⚠️ What a Real Thai Business Breach Looks Like
Here’s a scenario we’ve seen up close.
A logistics company in Samut Prakan gets an email that looks like it’s from a shipping partner. It includes a delivery manifest and a .docx file. An operations manager opens it - nothing happens. Or so it seems.
Behind the scenes, the attachment drops a loader script. Two days later, attackers log into the company’s Office 365 account, redirecting invoice emails.
By the time anyone notices, multiple clients have paid into the wrong bank account.
They lost over 800,000 baht and almost lost the client too.
🧩 So What Can You Actually Do?
If you’re running a business in Thailand, here’s how to reduce your exposure:
✅ Start with People
Phishing succeeds because people are too busy, too polite, or too uninformed to question suspicious behaviour. Run simulated phishing campaigns, train teams regularly, and make it okay to double-check strange requests, especially if they seem urgent.
✅ Protect Your Email Domain
Enable SPF, DKIM, and DMARC. This prevents attackers from spoofing your email address. Without it, anyone can pretend to be you.
✅ Deploy 2FA Across Everything
Multi-factor authentication prevents attackers from logging in with just a stolen password. It’s simple, cheap, and effective.
✅ Harden Your Inboxes
Use advanced email security tools to block malicious attachments, links, and impersonation attempts before they reach your staff.
✅ Monitor and React Fast
Set alerts for logins from foreign IPs, impossible travel patterns, or mailbox rule changes. These are common signs that an account has been compromised.
💼 How Raso Cyber Can Help
We work with Thai businesses of all sizes, from boutique firms to enterprise groups, to shut the door on phishing.
Here’s what we offer:
Simulated attacks and training tailored to Thai staff, in Thai language
Email hardening and domain protection using best-in-class tools
Dark web scanning to see if your staff credentials are already exposed
Executive workshops to help leadership teams understand the risk and make smart decisions
This is the kind of threat you don’t solve by buying more software. You solve it by understanding how your people work, and then building a smarter defence around that.
🧠 Final Thoughts
Phishing attacks are getting smarter, faster, and more convincing. If you think your staff will “just know” when something looks off, you’re betting your business on luck.
And the attackers are counting on it.
Let’s get ahead of this.