The 2012 Samsung Securities Cup was a professional tennis tournament played on hard courts. It was the 13th edition of the tournament which was part of the 2012 ATP Challenger Tour and the 2012 ITF Women's Circuit. It took place in Seoul, Korea between 22 and 28 October 2012.

Country	Player	Rank1	Seed
TPE	Lu Yen-hsun	58	1
JPN	Tatsuma Ito	63	2
RUS	Dmitry Tursunov	105	3
TUN	Malek Jaziri	112	4
FRA	Kenny de Schepper	123	5
JPN	Yūichi Sugita	141	6
TPE	Jimmy Wang	146	7
BLR	Uladzimir Ignatik	149	8

• ¹ Rankings are as of October 15, 2012.

The following players received wildcards into the singles main draw:

• Chung Hy-Eon
• Jeong Suk-Young
• Nam Ji-Sung
• Nam Hyun-woo

The following players received entry from the qualifying draw:

• Lim Yong-Kyu
• Matwé Middelkoop
• Na Jung-Woong
• Divij Sharan

Country	Player	Rank1	Seed
CRO	Donna Vekić	108	1
JPN	Erika Sema	183	2
KOR	Han Sung-Hee	273	3
HKG	Chan Wing-yau	340	4
JPN	Mai Minokoshi	343	5
UZB	Nigina Abduraimova	344	6
JPN	Chiaki Okadaue	369	7
KOR	Lee So-Ra	392	8

• ¹ Rankings are as of October 15, 2012.

The following players received wildcards into the singles main draw:

• Han Na-Lae
• Kang Seo-Kyung
• Lee Jin-a
• Song Ah

The following players received entry from the qualifying draw:

• Choi Ji-Hee
• Kim Hae-Sung
• Kim Na-Ri
• Lee Ye-Rin
• Napatsakorn Sankaew
• Trang Huynh Phuong Dai
• Varunya Wongteanchai
• Yea Hyo-Jung

• Lu Yen-hsun def. Yūichi Sugita, 6–3, 7–6^(7–4)

• Erika Sema def. Mai Minokoshi, 6–1, 7–5

• Lee Hsin-han / Peng Hsien-yin def. Lim Yong-Kyu / Nam Ji-Sung, 7–6^(7–3), 7–5

• Nigina Abduraimova / Chan Wing-yau def. Kim Ji-Young / Yoo Mi, 6–4, 2–6, [12–10]

• Official Website