But then things turned against him, for although he had ultimately emerged unscathed from the February 28 Incident, he did not escape the new persecution which arrived with the paranoia and political power struggles of the White Terror. Yen Hsiu-feng was arrested for "membership in a rebel organization" and sentenced to 15 years in prison.
然而情事逆轉，在風聲鶴唳的白色恐怖及政治權力的鬥爭中，李友邦躲過了二二八事件，卻躲不過白色恐怖的迫害，嚴秀峰以「參加匪幫組織」被捕，判刑十五年。