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Taiwan's Presidential Website Hit With DDoS Attack Ahead of Pelosi Visit

The attack occurred hours before House Speaker Nancy Pelosi arrived on the island. China has threatened that such a visit will lead to 'serious consequences.'

 & Michael Kan Principal Reporter

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Taiwan’s Presidential website suffered a DDoS attack on Tuesday, hours before US House Speaker Nancy Pelosi landed on the island in a visit mainland China adamantly opposes. 

The DDoS attack — which involves bombarding a site with a flood of internet traffic— occurred at 5:15pm local time and briefly caused the website for President Tsai Ing-wen to go down for about 20 minutes. 

In a Facebook post, Presidential spokesman Chang Tun-Han said the attack generated “200 times” the usual traffic to the website. In addition, the attack was sourced to internet traffic coming from outside the island’s networks. 

Although it remains unclear who launched the attack, suspicion is already falling on the Chinese government, which has warned that Taiwan will face “serious consequences” for permitting Pelosi to visit the island. The Chinese government has long sought to reclaim Taiwan as part of mainland China. However, Pelosi’s visit is sparking concerns in Beijing that the US is subtly maneuvering to support Taiwan’s independence as its own nation, separate from China. 

“A visit to Taiwan by her would constitute a gross interference in China’s internal affairs, seriously undermine China’s sovereignty and territorial integrity,” China’s foreign minister said on Monday, later adding: “We will make resolute response and take strong countermeasures to uphold China’s sovereignty.” 

The DDoS attack may signal that China has more in store to harass Taiwan. As Pelosi landed on the island, Chinese state media reported that the country’s Su-35 fighter jets were entering the Taiwan strait. On Monday, Chinese company Sina also mysteriously closed its news website and social media service Sina Weibo for Taiwan.  

In response to the DDoS attack, Taiwan’s Presidential spokesman Chang said Taiwan will continue to bolster the island’s IT defenses and critical infrastructure to confront the external information warfare. Meanwhile, the White House has officially said it does not support Taiwan independence, but that Speaker Pelosi has the right to visit the island.

In a statement, Pelosi defended the visit as honoring "America’s unwavering commitment to supporting Taiwan’s vibrant Democracy.

"Our visit is part of our broader trip to the Indo-Pacific — including Singapore, Malaysia, South Korea and Japan — focused on mutual security, economic partnership and democratic governance," she added. "Our discussions with Taiwan leadership will focus on reaffirming our support for our partner and on promoting our shared interests, including advancing a free and open Indo-Pacific region. America’s solidarity with the 23 million people of Taiwan is more important today than ever, as the world faces a choice between autocracy and democracy."

Pelosi also noted that she is not the only US politician to visit Taiwan. "Our visit is one of several Congressional delegations to Taiwan – and it in no way contradicts longstanding United States policy, guided by the Taiwan Relations Act of 1979, U.S.-China Joint Communiques and the Six Assurances. The United States continues to oppose unilateral efforts to change the status quo.”

The visit received support today from 26 Republicans, including Senate Minority Leader Mitch McConnell, who said it's consistent with the US' One China policy.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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