Yahoo! Southeast Asia has filed a memorandum of appearance with the courts to defend itself against allegations by Singapore Press Holdings that the digital media company had infringed on its copyright. "We intend to vigorously defend ourselves against this suit," said Yahoo! Southeast Asia Managing Editor Alan Soon. "Our editorial business model of acquired, commissioned and original content is proven." In its claim, SPH cited 23 articles which it alleged were reproduced from its stable of newspapers without permission. Yahoo! has denied the allegations in an earlier letter to SPH's lawyers.